Removed compiler/ directory from repository

dart/compiler/java/com/google/dart/compiler/UrlSource.java

Index: dart/compiler/java/com/google/dart/compiler/UrlSource.java
diff --git a/dart/compiler/java/com/google/dart/compiler/UrlSource.java b/dart/compiler/java/com/google/dart/compiler/UrlSource.java
deleted file mode 100644
index 890df68bc09df91d1fc2f2301f8197cb2c352bf8..0000000000000000000000000000000000000000
--- a/dart/compiler/java/com/google/dart/compiler/UrlSource.java
+++ /dev/null
@@ -1,205 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-package com.google.dart.compiler;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
-import java.net.JarURLConnection;
-import java.net.URI;
-import java.net.URL;
-import java.nio.charset.Charset;
-import java.util.jar.JarEntry;
-
-/**
- * A {@link Source} backed by a URL (or optionally by a file).
- */
-public abstract class UrlSource implements Source {
-
-  private final static String FILE_PROTOCOL = "file";
-  private final static String JAR_PROTOCOL = "jar";
-  private final static URI CURRENT_DIR = new File(".").toURI().normalize();
-  private final static Charset UTF8 = Charset.forName("UTF8");
-  private final static URI BASE_URI = CURRENT_DIR;
-
-  private final URI uri;
-  private final URI absoluteUri;
-  private final URI translatedUri;
-  private final boolean shouldCareAboutLastModified;
-  private volatile boolean exists = false;
-  private volatile long lastModified = -1;
-  private volatile boolean propertiesInitialized = false;
-
-  // generally, one or the other of these will be non-null after properties are initialized
-  private volatile File sourceFile = null;
-  private volatile JarURLConnection jarConn = null;
-
-  protected final PackageLibraryManager packageLibraryManager;
-
-  protected UrlSource(URI uri) {
-    this(uri,null);
-  }
-
-  protected UrlSource(URI uri, PackageLibraryManager slm) {
-    URI expanded = slm != null ? slm.expandRelativeDartUri(uri) : uri;
-    if (expanded == null) {
-      // import("dart:typo") case
-      expanded = uri;
-    }
-    this.uri = BASE_URI.relativize(expanded.normalize());
-    this.absoluteUri = BASE_URI.resolve(expanded);
-    this.packageLibraryManager = slm;
-    if (PackageLibraryManager.isDartUri(this.uri) || PackageLibraryManager.isPackageUri(this.uri)) {
-      assert slm != null;
-      this.shouldCareAboutLastModified = false;
-      this.translatedUri = slm.resolveDartUri(this.absoluteUri);
-    } else {
-      this.shouldCareAboutLastModified = true;
-      this.translatedUri = this.absoluteUri;
-    }
-  }
-
-  protected UrlSource(File file) {
-    URI uri = file.toURI().normalize();
-    if (!file.exists()) {
-      // TODO(jgw): This is a bit ugly, but some of the test infrastructure depends upon
-      // non-existant relative files being looked up as classpath resources. This was
-      // previously embedded in DartSourceFile.getSourceReader().
-      URL url = getClass().getClassLoader().getResource(file.getPath());
-      if (url != null) {
-        uri = URI.create(url.toString());
-      }
-    }
-
-    this.uri = BASE_URI.relativize(uri);
-    this.translatedUri = this.absoluteUri = BASE_URI.resolve(uri);
-    this.packageLibraryManager = null;
-    this.shouldCareAboutLastModified = true;
-  }
-
-  @Override
-  public boolean exists() {
-    initProperties();
-    return exists;
-  }
-
-  @Override
-  public long getLastModified() {
-    initProperties();
-    return lastModified;
-  }
-
-  @Override
-  public Reader getSourceReader() throws IOException {
-    initProperties();
-    if (sourceFile != null) {
-      return new InputStreamReader(new FileInputStream(sourceFile), UTF8);
-    } else if (jarConn != null) {
-      return new InputStreamReader(jarConn.getInputStream(), UTF8);
-    }
-    // fall back case
-    if (translatedUri != null) {
-      InputStream stream = translatedUri.toURL().openStream();
-      if (stream != null) {
-        return new InputStreamReader(stream, UTF8);
-      }
-    }
-    throw new FileNotFoundException(getName());
-  }
-
-  @Override
-  public String getUniqueIdentifier() {
-    return absoluteUri.toString();
-  }
-
-  /**
-   * Get the translated URI for this source.
-   * 
-   * @return the translated URI
-   */
-  public URI getTranslatedUri() {
-    return translatedUri;
-  }
-  
-  @Override
-  public URI getUri() {
-    return absoluteUri;
-  }
-
-  private void initProperties() {
-    synchronized (this) {
-      if (!propertiesInitialized) {
-        try {
-          initPropertiesEx();
-        } catch (Throwable e) {
-        } finally {
-          propertiesInitialized = true;
-        }
-      }
-    }
-  }
-
-  /**
-   * Implementation of {@link #initProperties()} which can throw exceptions.
-   */
-  private void initPropertiesEx() throws Exception {
-    URI resolvedUri = BASE_URI.resolve(translatedUri);
-    String scheme = resolvedUri.getScheme();
-    if (scheme == null || FILE_PROTOCOL.equals(scheme)) {
-      File file = new File(resolvedUri);
-      lastModified = file.lastModified();
-      exists = file.exists();
-      sourceFile = file;
-    } else {
-      URL url = translatedUri.toURL();
-      if (JAR_PROTOCOL.equals(url.getProtocol())) {
-        getJarEntryProperties(url);
-      } else {
-        /*
-         * TODO(jbrosenberg): Flesh out the support for other
-         * protocols, like http, etc. Note, calling
-         * URLConnection.getLastModified() can be dangerous, some
-         * URLConnection sub-classes don't have a way to close a
-         * connection opened by this call. Return 0 for now.
-         */
-        lastModified = 0;
-        // Default this to true for now.
-        exists = true;
-      }
-    }
-  }
-
-  private void getJarEntryProperties(URL url) {
-    try {
-      jarConn = (JarURLConnection) url.openConnection();
-      // useCaches is usually set to true by default, but make sure here
-      jarConn.setUseCaches(true);
-      // See if our entry exists
-      JarEntry jarEntry = jarConn.getJarEntry();
-      if (jarEntry != null) {
-        exists = true;
-        if (!shouldCareAboutLastModified) {
-          lastModified = 0;
-          return;
-        }
-        // TODO(jbrosenberg): Note the time field for a jarEntry can be
-        // unreliable, and is not always required in a jar file. Consider using
-        // the timestamp on the jar file itself.
-        lastModified = jarEntry.getTime();
-      }
-      if (!exists) {
-        lastModified = -1;
-        return;
-      }
-    } catch (IOException e) {
-      exists = false;
-      lastModified = -1;
-    }
-  }
-}