com.google.mr4c.content.AbstractContentFactory.java Source code

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Here is the source code for com.google.mr4c.content.AbstractContentFactory.java

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/**
  * Copyright 2014 Google Inc. All rights reserved.
  * 
  * 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.mr4c.content;

import org.apache.commons.io.IOUtils;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import java.net.URI;
import java.util.Properties;

public abstract class AbstractContentFactory implements ContentFactory {

    public Reader readContentAsReader(URI uri) throws IOException {
        return new InputStreamReader(readContentAsStream(uri));
    }

    public String readContentAsString(URI uri) throws IOException {
        Reader reader = readContentAsReader(uri);
        try {
            return IOUtils.toString(reader);
        } finally {
            reader.close();
        }
    }

    public abstract InputStream readContentAsStream(URI uri) throws IOException;

    public byte[] readContentAsBytes(URI uri) throws IOException {
        InputStream input = readContentAsStream(uri);
        try {
            return IOUtils.toByteArray(input);
        } finally {
            input.close();
        }
    }

    public Properties readContentAsProperties(URI uri) throws IOException {
        Properties props = new Properties();
        Reader reader = readContentAsReader(uri);
        try {
            props.load(reader);
            return props;
        } finally {
            reader.close();
        }
    }

    public void readContent(URI uri, Writer writer) throws IOException {
        Reader reader = readContentAsReader(uri);
        try {
            IOUtils.copy(reader, writer);
        } finally {
            reader.close();
        }
    }

    public void readContent(URI uri, OutputStream output) throws IOException {
        InputStream input = readContentAsStream(uri);
        try {
            IOUtils.copy(input, output);
        } finally {
            input.close();
        }
    }

    public void writeContent(URI uri, String text) throws IOException {
        Writer writer = getWriterForContent(uri);
        try {
            writer.write(text);
        } finally {
            writer.close();
        }
    }

    public void writeContent(URI uri, byte[] bytes) throws IOException {
        OutputStream output = getOutputStreamForContent(uri);
        try {
            output.write(bytes);
        } finally {
            output.close();
        }
    }

    public void writeContent(URI uri, Reader reader) throws IOException {
        Writer writer = getWriterForContent(uri);
        try {
            IOUtils.copy(reader, writer);
        } finally {
            writer.close();
        }
    }

    public void writeContent(URI uri, InputStream input) throws IOException {
        OutputStream output = getOutputStreamForContent(uri);
        try {
            IOUtils.copy(input, output);
        } finally {
            output.close();
        }
    }

    public void writeContent(URI uri, Properties props) throws IOException {
        Writer writer = getWriterForContent(uri);
        try {
            props.store(writer, "");
        } finally {
            writer.close();
        }
    }

    public Writer getWriterForContent(URI uri) throws IOException {
        return new OutputStreamWriter(getOutputStreamForContent(uri));
    }

    public abstract OutputStream getOutputStreamForContent(URI uri) throws IOException;

}