ch.sourcepond.io.checksum.impl.resources.InternalResourcesFactory Maven / Gradle / Ivy

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/*Copyright (C) 2017 Roland Hauser, 

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 ch.sourcepond.io.checksum.impl.resources;

import ch.sourcepond.io.checksum.api.ChannelSource;
import ch.sourcepond.io.checksum.api.Resource;
import ch.sourcepond.io.checksum.api.StreamSource;
import ch.sourcepond.io.checksum.impl.pools.DigesterPool;
import ch.sourcepond.io.checksum.impl.tasks.TaskFactory;

import java.net.URL;
import java.nio.file.Path;
import java.util.concurrent.ScheduledExecutorService;

/**
 * Factory to create {@link Resource} instances for different sources.
 */
public class InternalResourcesFactory {
    private final TaskFactory taskFactory;

    // Service dependency injected by DS
    private ScheduledExecutorService updateExecutor;

    // Constructor used by BundleActivator
    public InternalResourcesFactory() {
        this(new TaskFactory());
    }

    // Constructor used for testing
    public InternalResourcesFactory(final TaskFactory pTaskFactory) {
        taskFactory = pTaskFactory;
    }

    public void setUpdateExecutor(final ScheduledExecutorService pUpdateExecutor) {
        updateExecutor = pUpdateExecutor;
        taskFactory.setUpdateExecutor(pUpdateExecutor);
    }

    public Resource newResource(final DigesterPool pDigesterPool, final ChannelSource pSource) {
        return new ChannelResource(
                updateExecutor,
                pSource,
                pDigesterPool,
                taskFactory).initialUpdate();
    }

    public Resource newResource(final DigesterPool pDigesterPool, final Path pSource) {
        return new ChannelResource(
                updateExecutor,
                new FileChannelSource(pSource),
                pDigesterPool,
                taskFactory).initialUpdate();
    }

    public Resource newResource(final DigesterPool pDigesterPool, final StreamSource pSource) {
        return new StreamResource(
                updateExecutor,
                pSource,
                pDigesterPool,
                taskFactory).initialUpdate();
    }

    public Resource newResource(final DigesterPool pDigesterPool, final URL pSource) {
        return new StreamResource(
                updateExecutor,
                new URLStreamSource(pSource),
                pDigesterPool,
                taskFactory).initialUpdate();
    }
}