GrowlResources.java :  » UnTagged » growlforandroid » com » growlforandroid » common » Android Open Source

package com.growlforandroid.common;

import java.io.*;
import java.net.*;
import java.util.*;

import android.util.Log;

public class GrowlResources implements URLStreamHandlerFactory {
  private static String PROTOCOL = "x-growl-resource";
  private final ResourceHandler _handler = new ResourceHandler();
  private final Map<String, GrowlResource> _resources = new HashMap<String, GrowlResource>();
  
  public URLStreamHandler createURLStreamHandler(String protocol) {
    return (PROTOCOL.equals(protocol)) ? _handler : null;
  }
  
  public GrowlResource get(String identifier) {
    return _resources.get(identifier);
  }
  
  public void put(GrowlResource resource) {
    String identifier = resource.getIdentifier();
    Log.i("GrowlResources.put()", "Adding resource " + identifier);
    _resources.put(identifier, resource);
  }
  
  private class ResourceHandler extends URLStreamHandler {
    @Override
    protected URLConnection openConnection(URL u) throws IOException {
      return new ResourceURLConnection(u);
    }
  }
  
  private class ResourceURLConnection extends URLConnection {
    private String _identifier;
    private GrowlResource _resource;
    
    protected ResourceURLConnection(URL url) {
      super(url);
      _identifier = url.getHost();
    }

    @Override
    public void connect() throws IOException {
      Log.i("GrowlResourceURLConnection.connect()", "Connecting to resource " + _identifier);
      _resource = get(_identifier);
    }
    
    synchronized public InputStream getInputStream() throws IOException {
      File source = _resource.getSourceFile();
      FileInputStream inputStream = new FileInputStream(source);
      return inputStream;
    }
  }
}