| /* |
| * Copyright 2000-2010 JetBrains s.r.o. |
| * |
| * 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 org.jetbrains.android.logcat; |
| |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.io.IOException; |
| import java.io.Reader; |
| |
| /** |
| * @author Eugene.Kudelevsky |
| */ |
| public abstract class AndroidLoggingReader extends Reader { |
| @NotNull |
| protected abstract Object getLock(); |
| |
| @Nullable |
| protected abstract Reader getReader(); |
| |
| @Override |
| public int read(char[] cbuf, int off, int len) throws IOException { |
| Reader reader; |
| synchronized (getLock()) { |
| reader = getReader(); |
| } |
| return reader != null ? reader.read(cbuf, off, len) : -1; |
| } |
| |
| @Override |
| public boolean ready() throws IOException { |
| Reader reader = getReader(); |
| return reader != null && reader.ready(); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| Reader reader = getReader(); |
| if (reader != null) reader.close(); |
| } |
| } |