Added example-vfs project written on Kotlin.
This commit is contained in:
Evgeny Gerashchenko
@@ -0,0 +1,13 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="1.6" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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||||
<orderEntry type="module" module-name="stdlib" />
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</component>
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</module>
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@@ -0,0 +1,170 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="AntConfiguration">
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<defaultAnt bundledAnt="true" />
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||||
<component name="CompilerConfiguration">
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||||
<option name="DEFAULT_COMPILER" value="Javac" />
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||||
<resourceExtensions />
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<wildcardResourcePatterns>
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<entry name="?*.properties" />
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||||
<entry name="?*.xml" />
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<entry name="?*.gif" />
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<entry name="?*.png" />
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<entry name="?*.jpeg" />
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<entry name="?*.jpg" />
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<entry name="?*.html" />
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<entry name="?*.dtd" />
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<entry name="?*.tld" />
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<entry name="?*.ftl" />
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</wildcardResourcePatterns>
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<annotationProcessing enabled="false" useClasspath="true" />
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||||
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||||
<component name="CopyrightManager" default="">
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||||
<module2copyright />
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||||
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||||
<component name="DependencyValidationManager">
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||||
<option name="SKIP_IMPORT_STATEMENTS" value="false" />
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||||
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||||
<component name="Encoding" useUTFGuessing="true" native2AsciiForPropertiesFiles="false" />
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||||
<component name="EntryPointsManager">
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<entry_points version="2.0" />
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||||
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<property name="text" value="Button" />
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<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
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<initial-values>
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<property name="text" value="CheckBox" />
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<default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
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<initial-values>
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<property name="text" value="Label" />
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||||
<item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<preferred-size width="150" height="-1" />
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<preferred-size width="150" height="-1" />
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<item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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<preferred-size width="150" height="-1" />
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</item>
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||||
<item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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<item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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||||
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||||
</item>
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||||
<item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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||||
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||||
</item>
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||||
<item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
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</item>
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||||
<item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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<item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
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<preferred-size width="200" height="200" />
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||||
</default-constraints>
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||||
</item>
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||||
<item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
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<preferred-size width="200" height="200" />
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</default-constraints>
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</item>
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<item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
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||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
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</item>
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<item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
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</item>
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<item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
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||||
</item>
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||||
<item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
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||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
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||||
</item>
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<item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
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<preferred-size width="-1" height="20" />
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||||
</default-constraints>
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</item>
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||||
<item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
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</item>
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<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
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||||
</item>
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||||
</group>
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||||
</component>
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||||
<component name="ProjectModuleManager">
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||||
<modules>
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<module fileurl="file://$PROJECT_DIR$/example-vfs.iml" filepath="$PROJECT_DIR$/example-vfs.iml" />
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<module fileurl="file://$PROJECT_DIR$/../../stdlib/stdlib.iml" filepath="$PROJECT_DIR$/../../stdlib/stdlib.iml" />
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</modules>
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||||
</component>
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||||
<component name="ProjectResources">
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||||
<default-html-doctype>http://www.w3.org/1999/xhtml</default-html-doctype>
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||||
</component>
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||||
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_6" assert-keyword="true" jdk-15="true" project-jdk-name="1.6" project-jdk-type="JavaSDK">
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||||
<output url="file://$PROJECT_DIR$/out" />
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||||
</component>
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||||
<component name="VcsDirectoryMappings">
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<mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
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</component>
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</project>
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@@ -0,0 +1,130 @@
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package org.jetbrains.jet.samples.vfs;
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import java.util.concurrent.locks.ReadWriteLock;
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import java.util.concurrent.locks.ReentrantReadWriteLock;
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import org.jetbrains.jet.samples.vfs.utils.*;
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import java.util.concurrent.locks.Lock
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import java.io.File
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import java.util.List
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import java.util.ArrayList
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import java.util.HashMap
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import java.util.Arrays
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import java.util.Map
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import std.util.*
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/**
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* File system singleton. To work with virtual file system, read/write locks should be
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* acquired: use read() and write() higher-order functions.
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*/
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public object FileSystem {
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private val lock = ReentrantReadWriteLock()
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internal val watchedDirectories = ArrayList<VirtualFile>
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// FIXME VirtualFiles should be used as hashmap keys themselves,
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// but overriden hashCode() method fails in runtime with ClassCastException (KT-1134)
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/**
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* Mapping from virtual files to metainformation
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*/
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internal val fileToInfo = HashMap<String, VirtualFileInfo>()
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private val listeners = ArrayList<VirtualFileListener>()
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/**
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* Returns corresponding virtual file for java.io.File.
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*
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* @param ioFile file
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*/
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public fun getFileByIoFile(ioFile : File) : VirtualFile {
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FileSystem.assertCanRead()
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return PhysicalVirtualFile(ioFile.getAbsolutePath().sure().toSystemIndependentPath())
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}
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/**
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* Returns virtual file for path to it.
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*
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* @param path path to file
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*/
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public fun getFileByPath(path : String) : VirtualFile {
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return getFileByIoFile(File(path))
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}
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/**
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* Runs function with read lock.
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*/
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public inline fun read<T>(task : () -> T) : T {
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return locked(lock.readLock().sure(), task)
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}
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/**
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* Runs function with write lock.
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*/
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public inline fun write<T>(task : () -> T) : T {
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return locked(lock.writeLock().sure(), task)
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}
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/**
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* Adds directory to list of watched directories. Watched directories are
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* periodically refreshed and corresponding events are sent to file system listeners.
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*
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* @param dir directory which should be watched
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*/
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public fun addWatchedDirectory(dir : VirtualFile) {
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assertCanRead()
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if (dir.isDirectory()) {
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watchedDirectories.add(dir)
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scanAndAddRecursivelyNoEvents(dir)
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RefreshQueue.scheduleRefresh()
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}
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}
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/* Scans file recursively and adds info about it to fileToInfo map */
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private fun scanAndAddRecursivelyNoEvents(file : VirtualFile) {
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assert(FileSystem.fileToInfo[file.path] == null)
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val fileInfo = VirtualFileInfo(file)
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FileSystem.fileToInfo[file.path] = fileInfo
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fileInfo.children.foreach{ scanAndAddRecursivelyNoEvents(it) }
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}
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internal inline fun assertCanRead() {
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assert(lock.getReadHoldCount() != 0 || lock.isWriteLockedByCurrentThread())
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}
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internal inline fun assertCanWrite() {
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assert(lock.isWriteLockedByCurrentThread())
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}
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/**
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* Adds file system listener which should be notified about changing of file system.
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*/
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public fun addVirtualFileListener(listener : VirtualFileListener) {
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listeners.add(listener)
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}
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/**
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* Removes file system listener.
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*/
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public fun removeVirtualFileListener(listener : VirtualFileListener) {
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listeners.remove(listener)
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}
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/* Notifies all listeners */
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internal fun notifyEventHappened(event : VirtualFileEvent) {
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for (listener in listeners) {
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listener.eventHappened(event)
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}
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}
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}
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private class VirtualFileInfo(file : VirtualFile) {
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/* Last modification time */
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var lastModified : Long = 0
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/* List of known children */
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val children : List<VirtualFile> = ArrayList<VirtualFile>;
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{
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children.addAll(file.children())
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lastModified = file.modificationTime()
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}
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}
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@@ -0,0 +1,36 @@
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package org.jetbrains.jet.samples.vfs.sandbox;
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import org.jetbrains.jet.samples.vfs.*;
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import java.io.InputStreamReader
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import java.util.Scanner
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/**
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* Receives list of directories which should be watched, adds them to virtual file system,
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* adds virtual file system listener and waits for 1 minutes, printing out all received event.
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*/
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fun main(args : Array<String>) {
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||||
if (args.size == 0) {
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println("Provide list of watched directories as command line arguments")
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return
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||||
}
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||||
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||||
// add watched directory
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||||
FileSystem.write {
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for (val arg in args) {
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FileSystem.addWatchedDirectory(FileSystem.getFileByPath(arg))
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}
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||||
}
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||||
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||||
// add listener which prints out everything
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FileSystem.addVirtualFileListener(object : VirtualFileListener {
|
||||
override fun eventHappened(event: VirtualFileEvent) {
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println(event)
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||||
if (event is VirtualFileChangedEvent) {
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println("new file size is ${event.file.size()}")
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||||
}
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||||
}
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||||
})
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||||
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||||
// wait for 1 minute
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||||
Thread.sleep(60000)
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||||
}
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||||
@@ -0,0 +1,138 @@
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package org.jetbrains.jet.samples.vfs;
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||||
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||||
import java.util.concurrent.ConcurrentLinkedQueue
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||||
import java.util.List
|
||||
import java.util.concurrent.locks.ReentrantLock
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||||
import java.util.concurrent.LinkedBlockingQueue
|
||||
import java.util.ArrayList
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||||
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||||
import std.util.*
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||||
import java.util.Timer
|
||||
import java.util.TimerTask
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||||
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||||
import org.jetbrains.jet.samples.vfs.utils.*
|
||||
|
||||
/**
|
||||
* Singleton which creates thread for periodically checking if there are changes in
|
||||
* file system and notifying file system listeners.
|
||||
*/
|
||||
internal object RefreshQueue : Runnable {
|
||||
private val taskQueue = LinkedBlockingQueue<List<VirtualFile>>()
|
||||
private val workerThread: Thread = Thread(this)
|
||||
private val fullRefreshScheduler = Timer(true);
|
||||
|
||||
{
|
||||
workerThread.setDaemon(true)
|
||||
workerThread.start()
|
||||
|
||||
fullRefreshScheduler.scheduleAtFixedRate(createTimerTask {
|
||||
scheduleRefresh(FileSystem.watchedDirectories)
|
||||
}, 0, 5000)
|
||||
}
|
||||
|
||||
private fun takeAndRefreshFiles() {
|
||||
refreshFiles(taskQueue.take())
|
||||
}
|
||||
|
||||
/* Acquires write lock and refreshes file system */
|
||||
private fun refreshFiles(files : List<VirtualFile>) {
|
||||
FileSystem.write {
|
||||
files.foreach{ refreshFile(it) }
|
||||
}
|
||||
}
|
||||
|
||||
/* Checks for changes in virtual file recursively, notifying listeners. */
|
||||
private fun refreshFile(file : VirtualFile) {
|
||||
FileSystem.assertCanWrite()
|
||||
if (file.isDirectory()) {
|
||||
val fileToInfo = FileSystem.fileToInfo
|
||||
val fileInfo = fileToInfo[file.path]
|
||||
val oldChildren = fileInfo.children
|
||||
val newChildren = file.children()
|
||||
|
||||
val addedChildren = listDifference(newChildren, oldChildren)
|
||||
val deletedChildren = listDifference(oldChildren, newChildren)
|
||||
val commonChildren = listIntersection(oldChildren, newChildren)
|
||||
|
||||
addedChildren.foreach{ addRecursively(it) }
|
||||
deletedChildren.foreach{ deleteRecursively(it) }
|
||||
|
||||
fileInfo.children.clear()
|
||||
fileInfo.children.addAll(newChildren)
|
||||
|
||||
commonChildren.foreach{ refreshFile(it) }
|
||||
} else {
|
||||
val fileInfo = FileSystem.fileToInfo[file.path]
|
||||
assert(fileInfo != null)
|
||||
|
||||
val newModificationTime = file.modificationTime()
|
||||
if (fileInfo.lastModified != newModificationTime) {
|
||||
fileInfo.lastModified = newModificationTime
|
||||
|
||||
FileSystem.notifyEventHappened(VirtualFileChangedEvent(file))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Adds file to file system recursively, notifying listeners */
|
||||
private fun addRecursively(file : VirtualFile) {
|
||||
assert(FileSystem.fileToInfo[file] == null)
|
||||
|
||||
val fileInfo = VirtualFileInfo(file)
|
||||
|
||||
FileSystem.fileToInfo[file.path] = fileInfo
|
||||
FileSystem.notifyEventHappened(VirtualFileCreateEvent(file))
|
||||
|
||||
fileInfo.children.foreach{ addRecursively(it) }
|
||||
}
|
||||
|
||||
/* Deletes file from file system recursively, notifying listeners */
|
||||
private fun deleteRecursively(file : VirtualFile) {
|
||||
val fileInfoMaybe : VirtualFileInfo? = FileSystem.fileToInfo[file.path]
|
||||
val fileInfo = fileInfoMaybe.sure()
|
||||
fileInfo.children.foreach{ deleteRecursively(it) }
|
||||
FileSystem.notifyEventHappened(VirtualFileDeletedEvent(file))
|
||||
FileSystem.fileToInfo.remove(file)
|
||||
}
|
||||
|
||||
/**
|
||||
* Schedules refresh for given list of files.
|
||||
*/
|
||||
public fun scheduleRefresh(files : List<VirtualFile>) {
|
||||
taskQueue.put(files)
|
||||
}
|
||||
|
||||
/**
|
||||
* Schedules refresh for given list of files.
|
||||
*/
|
||||
public fun scheduleRefresh(vararg files : VirtualFile) {
|
||||
// FIXME This could be written more concise, using map() & toList() (KT-1164 & KT-1172)
|
||||
val filesList = ArrayList<VirtualFile>()
|
||||
files.foreach{ filesList.add(it) }
|
||||
taskQueue.put(filesList)
|
||||
|
||||
// taskQueue.put(ArrayList<VirtualFile>(files.map{ it }))
|
||||
// taskQueue.put(files.map{ it }.toList())
|
||||
}
|
||||
|
||||
// FIXME RefreshQueue implements Runnable because of error on accessing
|
||||
// private fields and methods from anonymous class (KT-1157 & KT-1159) (
|
||||
override fun run() {
|
||||
while (!workerThread.isInterrupted()) {
|
||||
try {
|
||||
takeAndRefreshFiles()
|
||||
} catch (e : InterruptedException) {
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// FIXME this method is used because of error on accessing
|
||||
// private methods from anonymous class (KT-1157) (
|
||||
private fun createTimerTask(task : () -> Unit) : TimerTask {
|
||||
return object : TimerTask() {
|
||||
override fun run() {
|
||||
task()
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,42 @@
|
||||
package org.jetbrains.jet.samples.vfs.utils;
|
||||
|
||||
import java.util.concurrent.locks.Lock
|
||||
import java.util.List
|
||||
import std.util.*
|
||||
|
||||
/**
|
||||
* Executes task with given lock acquired.
|
||||
*/
|
||||
private fun locked<T>(lock : Lock, body : () -> T) : T {
|
||||
lock.lock()
|
||||
try {
|
||||
return body()
|
||||
} finally {
|
||||
lock.unlock();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks boolean value which should be true. If it is false, throws Assertion Error
|
||||
*
|
||||
* @param value value to be checked
|
||||
*/
|
||||
public fun assert(value : Boolean) {
|
||||
if (!value) {
|
||||
throw AssertionError()
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns list containing all elements which first contains and second does not.
|
||||
*/
|
||||
public fun listDifference<T>(first : List<T>, second : List<T>) : List<T> {
|
||||
return first.filter{ !second.contains(it) }.toList()
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns list containing all elements which both lists contain.
|
||||
*/
|
||||
public fun listIntersection<T>(first : List<T>, second : List<T>) : List<T> {
|
||||
return first.filter{ second.contains(it) }.toList()
|
||||
}
|
||||
@@ -0,0 +1,164 @@
|
||||
package org.jetbrains.jet.samples.vfs;
|
||||
|
||||
import org.jetbrains.jet.samples.vfs.utils.*;
|
||||
import java.io.File
|
||||
import java.io.InputStream
|
||||
import java.io.FileInputStream
|
||||
import java.util.ArrayList
|
||||
import java.util.List
|
||||
|
||||
import std.util.*
|
||||
|
||||
/**
|
||||
* Abstract virtual file.
|
||||
*/
|
||||
public abstract class VirtualFile(public val path : String) {
|
||||
// FIXME this method should be replaced with val (KT-1168, KT-1170)
|
||||
protected abstract fun kind() : String
|
||||
|
||||
// FIXME these abstract methods should be replaced with vals (KT-1165)
|
||||
/**
|
||||
* Returns file size.
|
||||
*/
|
||||
public abstract fun size() : Long
|
||||
/**
|
||||
* Returns the time that the virtual file was last modified (milliseconds since
|
||||
* the epoch (00:00:00 GMT, January 1, 1970).
|
||||
*/
|
||||
public abstract fun modificationTime() : Long
|
||||
/**
|
||||
* Returns if virtual file exists.
|
||||
*/
|
||||
public abstract fun exists() : Boolean
|
||||
/**
|
||||
* Returns if virtual file is directory
|
||||
*/
|
||||
public abstract fun isDirectory() : Boolean
|
||||
/**
|
||||
* Returns list of virtual files which are children for this.
|
||||
*/
|
||||
public abstract fun children() : List<VirtualFile>
|
||||
|
||||
/**
|
||||
* Opens input stream for reading. After reading, stream should be closed.
|
||||
* Reading from stream should be performed with read lock acquired.
|
||||
*/
|
||||
public abstract fun openInputStream() : InputStream
|
||||
|
||||
fun equals(other : Any?) : Boolean {
|
||||
return other is VirtualFile && kind() == other.kind() && path == other.path
|
||||
}
|
||||
|
||||
fun hashCode() : Int {
|
||||
// FIXME rewrite without casting when it will be possible
|
||||
return (kind() as java.lang.String).hashCode() * 31 + (path as java.lang.String).hashCode()
|
||||
}
|
||||
|
||||
fun toString(): String {
|
||||
return "${kind()}[path=$path]"
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Type of virtual file which corresponds to real file in file system of OS.
|
||||
*/
|
||||
public class PhysicalVirtualFile(path : String) : VirtualFile(path) {
|
||||
override fun kind() : String = "Physical"
|
||||
|
||||
private val ioFile : File
|
||||
get() = File(this.path.toSystemDependentPath())
|
||||
|
||||
override fun exists(): Boolean {
|
||||
FileSystem.assertCanRead()
|
||||
return ioFile.exists()
|
||||
}
|
||||
|
||||
override fun size(): Long {
|
||||
FileSystem.assertCanRead()
|
||||
return ioFile.length()
|
||||
}
|
||||
|
||||
override fun modificationTime(): Long {
|
||||
FileSystem.assertCanRead()
|
||||
return ioFile.lastModified()
|
||||
}
|
||||
|
||||
override fun isDirectory(): Boolean {
|
||||
FileSystem.assertCanRead()
|
||||
return ioFile.isDirectory()
|
||||
}
|
||||
|
||||
override fun children(): List<VirtualFile> {
|
||||
FileSystem.assertCanRead()
|
||||
return (ioFile.listFiles() ?: Array<File>(0)).
|
||||
map{ FileSystem.getFileByIoFile(it.sure()) }?.toList()
|
||||
}
|
||||
|
||||
override fun openInputStream(): InputStream {
|
||||
FileSystem.assertCanRead()
|
||||
if (isDirectory()) {
|
||||
throw IllegalArgumentException("Can't open directory for reading");
|
||||
}
|
||||
return CheckedInputStream(FileInputStream(ioFile))
|
||||
}
|
||||
}
|
||||
|
||||
private fun String.toSystemDependentPath() : String {
|
||||
// FIXME constants should be extracted (NPE in compiler, KT-1111)
|
||||
return this.replaceAll("/", java.io.File.separator.sure())
|
||||
}
|
||||
|
||||
private fun String.toSystemIndependentPath() : String {
|
||||
// FIXME constants should be extracted (NPE in compiler, KT-1111)
|
||||
return this.replaceAll(java.io.File.separator.sure(), "/")
|
||||
}
|
||||
|
||||
/**
|
||||
* InputStream wrapper which checks that file system read lock is acquired on each operation.
|
||||
*/
|
||||
private class CheckedInputStream(private val wrapped : InputStream) : InputStream() {
|
||||
override fun read(): Int {
|
||||
FileSystem.assertCanRead()
|
||||
return wrapped.read()
|
||||
}
|
||||
|
||||
override fun read(b: ByteArray?, off: Int, len: Int) : Int {
|
||||
FileSystem.assertCanRead()
|
||||
return wrapped.read(b, off, len)
|
||||
}
|
||||
|
||||
override fun markSupported(): Boolean {
|
||||
FileSystem.assertCanRead()
|
||||
return wrapped.markSupported()
|
||||
}
|
||||
|
||||
override fun skip(n: Long): Long {
|
||||
FileSystem.assertCanRead()
|
||||
return wrapped.skip(n)
|
||||
}
|
||||
|
||||
override fun close() {
|
||||
FileSystem.assertCanRead()
|
||||
return wrapped.close()
|
||||
}
|
||||
|
||||
override fun mark(readlimit: Int) {
|
||||
FileSystem.assertCanRead()
|
||||
return wrapped.mark(readlimit)
|
||||
}
|
||||
|
||||
override fun read(b: ByteArray?): Int {
|
||||
FileSystem.assertCanRead()
|
||||
return wrapped.read(b)
|
||||
}
|
||||
|
||||
override fun reset() {
|
||||
FileSystem.assertCanRead()
|
||||
return wrapped.reset()
|
||||
}
|
||||
|
||||
override fun available(): Int {
|
||||
FileSystem.assertCanRead()
|
||||
return wrapped.available()
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,42 @@
|
||||
package org.jetbrains.jet.samples.vfs;
|
||||
|
||||
/**
|
||||
* Listener for receiving virtual file event
|
||||
*/
|
||||
public trait VirtualFileListener : java.util.EventListener {
|
||||
fun eventHappened(val event : VirtualFileEvent)
|
||||
}
|
||||
|
||||
/**
|
||||
* Base type of virtual file events
|
||||
* @property file affected by event
|
||||
*/
|
||||
public abstract class VirtualFileEvent(val file : VirtualFile) : Object() {
|
||||
}
|
||||
|
||||
/**
|
||||
* Event of creating file
|
||||
*/
|
||||
public class VirtualFileCreateEvent(file : VirtualFile) : VirtualFileEvent(file) {
|
||||
override fun toString(): String? {
|
||||
return "created ${file}"
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Event of deleting file
|
||||
*/
|
||||
public class VirtualFileDeletedEvent(file : VirtualFile) : VirtualFileEvent(file) {
|
||||
override fun toString(): String? {
|
||||
return "deleted ${file}"
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Event of changing file contents
|
||||
*/
|
||||
public class VirtualFileChangedEvent(file : VirtualFile) : VirtualFileEvent(file) {
|
||||
override fun toString(): String? {
|
||||
return "changed ${file}"
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user