89 lines
2.4 KiB
Java
89 lines
2.4 KiB
Java
/*
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* Copyright (C) 2008 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.email.mail.transport;
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import com.android.email.Email;
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import android.util.Log;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* Simple class used for debugging only that affords us a view of the raw IMAP or POP3 stream,
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* in addition to the tokenized version.
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*
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* Use of this class *MUST* be restricted to logging-enabled situations only.
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*/
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public class LoggingInputStream extends InputStream {
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InputStream mIn;
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StringBuilder mSb;
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boolean mBufferDirty;
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private final String LINE_TAG = "RAW ";
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public LoggingInputStream(InputStream in) {
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super();
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mIn = in;
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mSb = new StringBuilder(LINE_TAG);
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mBufferDirty = false;
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}
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/**
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* Collect chars as read, and log them when EOL reached.
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*/
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@Override
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public int read() throws IOException {
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int oneByte = mIn.read();
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logRaw(oneByte);
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return oneByte;
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}
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/**
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* Collect chars as read, and log them when EOL reached.
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*/
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@Override
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public int read(byte[] b, int offset, int length) throws IOException {
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int bytesRead = mIn.read(b, offset, length);
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int copyBytes = bytesRead;
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while (copyBytes > 0) {
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logRaw((char)b[offset]);
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copyBytes--;
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offset++;
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}
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return bytesRead;
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}
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/**
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* Write and clear the buffer
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*/
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private void logRaw(int oneByte) {
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if (oneByte == '\r' || oneByte == '\n') {
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if (mBufferDirty) {
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Log.d(Email.LOG_TAG, mSb.toString());
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mSb = new StringBuilder(LINE_TAG);
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mBufferDirty = false;
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}
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} else {
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mSb.append((char)oneByte);
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mBufferDirty = true;
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}
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}
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}
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