FlatFilePropertiesIO.java

package jetbrains.mps.smodel.resources;

/*Generated by MPS */

import jetbrains.mps.make.resources.IPropertiesIO;
import jetbrains.mps.vfs.IFile;
import java.util.Map;
import java.io.IOException;
import jetbrains.mps.baseLanguage.closures.runtime.Wrappers;
import java.util.Properties;
import jetbrains.mps.smodel.ModelAccess;
import java.io.InputStream;
import java.util.HashMap;

public class FlatFilePropertiesIO implements IPropertiesIO {
  private IFile descFile;
  public FlatFilePropertiesIO(IFile descFile) {
    this.descFile = descFile;
  }
  @Override
  public void writeProperties(Map<String, String> store) throws IOException {
    throw new UnsupportedOperationException();
  }
  @Override
  public Map<String, String> readProperties() throws IOException {
    if (descFile == null) {
      return null;
    }
    IFile dir = descFile.getParent();
    final IFile pf = dir.getDescendant("make.properties");
    if (!(pf.exists())) {
      return null;
    }
    final Wrappers._T<Properties> props = new Wrappers._T<Properties>(null);
    ModelAccess.instance().runReadAction(new Runnable() {
      public void run() {
        InputStream is = null;
        try {
          is = pf.openInputStream();
          props.value = new Properties();
          props.value.load(is);
        } catch (IOException e) {
        } finally {
          try {
            if (is != null) {
              is.close();
            }
          } catch (IOException ignore) {
          }
        }
      }
    });
    return (Map<String, String>) ((props.value != null ? new HashMap(props.value) : null));
  }
  @Override
  public Object getKey() {
    return (descFile != null ? descFile.getPath() : null);
  }
}