dev/core/test/com/google/gwt/dev/FooResourceGenerator.java

/*
 * Copyright 2014 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.dev;

import com.google.gwt.core.ext.Generator;
import com.google.gwt.core.ext.GeneratorContext;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.linker.EmittedArtifact.Visibility;
import com.google.gwt.thirdparty.guava.common.base.Charsets;

import java.io.IOException;
import java.io.OutputStream;

/**
 * A Generator that always creates a bar.txt resource.
 */
public class FooResourceGenerator extends Generator {

  public static int runCount = 0;

  @Override
  public String generate(TreeLogger logger, GeneratorContext context, String typeName)
      throws UnableToCompleteException {
    runCount++;
    OutputStream barStream = context.tryCreateResource(logger, "bar.txt");
    if (barStream != null) {
      try {
        barStream.write("here's some text.".getBytes(Charsets.UTF_8));
        context.commitResource(logger, barStream).setVisibility(
            Visibility.Public);
      } catch (IOException e) {
        return null;
      }
    }
    return null;
  }
}