NonRepeatableInputStream.java

/*
 * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. 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://aws.amazon.com/apache2.0
 *
 * This file 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.amazonaws.retry;

import com.amazonaws.internal.SdkInputStream;

import java.io.IOException;
import java.io.InputStream;

class NonRepeatableInputStream extends SdkInputStream {

    private final String nonRepeatableContent;
    private int pos;

    public NonRepeatableInputStream(String content) {
        nonRepeatableContent = content;
        pos = 0;
    }

    @Override
    public int read() throws IOException {
        if (pos >= nonRepeatableContent.length())
            return -1;
        return nonRepeatableContent.charAt(pos++);
    }

    @Override
    protected InputStream getWrappedInputStream() {
        return null;
    }

}