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A web service test double for all occasions

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/*
 * Copyright (C) 2011 Thomas Akehurst
 *
 * 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.github.tomakehurst.wiremock.common;

import java.io.*;
import java.net.URI;
import java.nio.charset.Charset;

public class StreamSources {
    private StreamSources() {
    }

    public static InputStreamSource forString(final String string, final Charset charset) {
        return new InputStreamSource() {
            @Override
            public InputStream getStream() {
                return string == null ? null : new ByteArrayInputStream(Strings.bytesFromString(string, charset));
            }
        };
    }

    public static InputStreamSource forBytes(final byte[] bytes) {
        return new InputStreamSource() {
            @Override
            public InputStream getStream() {
                return bytes == null ? null : new ByteArrayInputStream(bytes);
            }
        };
    }

    public static InputStreamSource forURI(final URI uri) {
        return  new InputStreamSource() {
            @Override
            public InputStream getStream() {
                try {
                    return uri == null ? null : new BufferedInputStream(uri.toURL().openStream());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
        };
    }

}