com.google.jstestdriver.AggregatingResponseStreamFactory.java Source code

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Here is the source code for com.google.jstestdriver.AggregatingResponseStreamFactory.java

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/*
x * Copyright 2009 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.jstestdriver;

import com.google.common.collect.Lists;
import com.google.inject.Inject;

import java.util.List;
import java.util.Set;

/**
 * Aggregates a set of {@link ResponseStreamFactory}s by providing an AggregatingResponseStream.
 * @author corysmith@google.com (Cory Smith)
 */
public class AggregatingResponseStreamFactory implements ResponseStreamFactory {

    private final Set<ResponseStreamFactory> factories;

    @Inject
    public AggregatingResponseStreamFactory(Set<ResponseStreamFactory> factories) {
        this.factories = factories;
    }

    @Override
    public ResponseStream getDryRunActionResponseStream() {
        List<ResponseStream> streams = defaultStreams();
        for (ResponseStreamFactory factory : factories) {
            streams.add(factory.getDryRunActionResponseStream());
        }
        return new AggregatingResponseStream(streams);
    }

    private List<ResponseStream> defaultStreams() {
        final List<ResponseStream> defaultStreams = Lists.newLinkedList();
        defaultStreams.add(new BrowserPanicResponseStream());
        return defaultStreams;
    }

    @Override
    public ResponseStream getEvalActionResponseStream() {
        List<ResponseStream> streams = defaultStreams();
        for (ResponseStreamFactory factory : factories) {
            streams.add(factory.getEvalActionResponseStream());
        }
        return new AggregatingResponseStream(streams);
    }

    @Override
    public ResponseStream getResetActionResponseStream() {
        List<ResponseStream> streams = defaultStreams();
        for (ResponseStreamFactory factory : factories) {
            streams.add(factory.getResetActionResponseStream());
        }
        return new AggregatingResponseStream(streams);
    }

    @Override
    public ResponseStream getRunTestsActionResponseStream(String browserId) {
        List<ResponseStream> streams = defaultStreams();
        for (ResponseStreamFactory factory : factories) {
            streams.add(factory.getRunTestsActionResponseStream(browserId));
        }
        return new AggregatingResponseStream(streams);
    }

    public static class AggregatingResponseStream implements ResponseStream {

        private final List<ResponseStream> streams;

        public AggregatingResponseStream(List<ResponseStream> streams) {
            this.streams = streams;
        }

        @Override
        public void finish() {
            for (ResponseStream stream : streams) {
                stream.finish();
            }
        }

        @Override
        public void stream(Response response) {
            for (ResponseStream stream : streams) {
                stream.stream(response);
            }
        }

        @Override
        public String toString() {
            return "AggregatingResponseStream [streams=" + streams + "]";
        }
    }
}