1 files changed, 141 insertions, 0 deletions
diff --git a/org.eclipse.m2e.core/src/org/eclipse/m2e/core/builder/AbstractEclipseBuildContext.java b/org.eclipse.m2e.core/src/org/eclipse/m2e/core/builder/AbstractEclipseBuildContext.java
new file mode 100644
index 00000000..df3a519d
--- /dev/null
+++ b/org.eclipse.m2e.core/src/org/eclipse/m2e/core/builder/AbstractEclipseBuildContext.java
@@ -0,0 +1,141 @@
+/*******************************************************************************
+ * Copyright (c) 2008-2010 Sonatype, Inc.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *      Sonatype, Inc. - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.m2e.core.builder;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
+
+import org.sonatype.plexus.build.incremental.BuildContext;
+
+
+/**
+ * AbstractEclipseBuildContext
+ * 
+ * @author igor
+ */
+public abstract class AbstractEclipseBuildContext implements BuildContext {
+
+  public static class Message {
+    public final File file;
+
+    public final int line;
+
+    public final int column;
+
+    public final String message;
+
+    public final Throwable cause;
+
+    Message(File file, int line, int column, String message, Throwable cause) {
+      this.file = file;
+      this.line = line;
+      this.column = column;
+      this.message = message;
+      this.cause = cause;
+    }
+  }
+
+  private final Set<File> refresh = new HashSet<File>();
+
+  protected final Map<String, Object> context;
+
+  private final ArrayList<Message> errorMessages = new ArrayList<Message>();
+
+  private final ArrayList<Message> warningMessages = new ArrayList<Message>();
+
+  protected AbstractEclipseBuildContext(Map<String, Object> context) {
+    this.context = context;
+  }
+
+  public void refresh(File file) {
+    refresh.add(file);
+  }
+
+  public Set<File> getFiles() {
+    return refresh;
+  }
+
+  public OutputStream newFileOutputStream(File file) throws IOException {
+    return new ChangedFileOutputStream(file, this);
+  }
+
+  /**
+   * Returns path relative to delta resource location.
+   */
+  protected IPath getRelativePath(File file) {
+    IPath basepath = getBaseResource().getLocation();
+    IPath path = Path.fromOSString(file.getAbsolutePath());
+
+    if(!basepath.isPrefixOf(path)) {
+      return null;
+    }
+
+    return path.removeFirstSegments(basepath.segmentCount());
+  }
+
+  protected IResource getResource(File file) {
+    IPath relpath = getRelativePath(file);
+    if (relpath == null) {
+      return null;
+    }
+    IResource baseResource = getBaseResource();
+    if (baseResource instanceof IContainer) {
+      return ((IContainer) baseResource).findMember(relpath);
+    }
+    return null;
+  }
+
+  protected abstract IResource getBaseResource();
+
+  public void setValue(String key, Object value) {
+    context.put(key, value);
+  }
+
+  public Object getValue(String key) {
+    return context.get(key);
+  }
+
+  public void addError(File file, int line, int column, String message, Throwable cause) {
+    errorMessages.add(new Message(file, line, column, message, cause));
+  }
+
+  public void addWarning(File file, int line, int column, String message, Throwable cause) {
+    warningMessages.add(new Message(file, line, column, message, cause));
+  }
+
+  public List<Message> getErrorMessages() {
+    return errorMessages;
+  }
+
+  public List<Message> getWarningMessages() {
+    return warningMessages;
+  }
+
+  public boolean isUptodate(File target, File source) {
+    IResource targetResource = getResource(target);
+    IResource sourceResource = getResource(source);
+    return targetResource != null && targetResource.isAccessible() && !hasDelta(target)
+        && sourceResource != null && sourceResource.isAccessible() && !hasDelta(source)
+        && targetResource.getLocalTimeStamp() >= sourceResource.getLocalTimeStamp();
+  }
+}