62 lines
1.9 KiB
Java
62 lines
1.9 KiB
Java
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/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.voicemail.impl.mail;
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import android.util.Base64;
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import android.util.Base64OutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import org.apache.commons.io.IOUtils;
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public class Base64Body implements Body {
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private final InputStream source;
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// Because we consume the input stream, we can only write out once
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private boolean alreadyWritten;
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public Base64Body(InputStream source) {
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this.source = source;
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}
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@Override
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public InputStream getInputStream() throws MessagingException {
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return source;
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}
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/**
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* This method consumes the input stream, so can only be called once
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*
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* @param out Stream to write to
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* @throws IllegalStateException If called more than once
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* @throws IOException
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* @throws MessagingException
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*/
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@Override
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public void writeTo(OutputStream out)
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throws IllegalStateException, IOException, MessagingException {
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if (alreadyWritten) {
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throw new IllegalStateException("Base64Body can only be written once");
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}
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alreadyWritten = true;
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try {
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final Base64OutputStream b64out = new Base64OutputStream(out, Base64.DEFAULT);
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IOUtils.copyLarge(source, b64out);
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} finally {
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source.close();
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}
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}
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}
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