FileDeltaCollector.java

package jetbrains.mps.internal.make.runtime.java;

/*Generated by MPS */

import jetbrains.mps.generator.generationTypes.StreamHandler;
import jetbrains.mps.internal.make.runtime.util.FilesDelta;
import jetbrains.mps.vfs.IFile;
import org.jdom.Element;

public class FileDeltaCollector implements StreamHandler {
  private final FilesDelta myDelta;
  private final IFile myOutputDir;
  private final FileProcessor myProcessor;

  public FileDeltaCollector(IFile outputDir, FileProcessor fileProcessor) {
    myDelta = new FilesDelta(outputDir);
    myOutputDir = outputDir;
    myProcessor = fileProcessor;
  }
  public FilesDelta getDelta() {
    return myDelta;
  }
  @Override
  public void saveStream(String name, String content) {
    IFile file = getFile(name);
    if (myProcessor.saveContent(file, content)) {
      myDelta.written(file);
    } else {
      myDelta.kept(file);
    }
  }
  @Override
  public void saveStream(String name, Element element) {
    IFile file = getFile(name);
    if (myProcessor.saveContent(file, element)) {
      myDelta.written(file);
    } else {
      myDelta.kept(file);
    }
  }
  @Override
  public void saveStream(String name, byte[] content) {
    IFile file = getFile(name);
    if (myProcessor.saveContent(file, content)) {
      myDelta.written(file);
    } else {
      myDelta.kept(file);
    }
  }
  @Override
  public boolean touch(String name) {
    IFile file = getFile(name);
    myDelta.kept(file);
    return file.exists();
  }
  private IFile getFile(String name) {
    return myOutputDir.getDescendant(name);
  }
}