diff options
Diffstat (limited to 'core/java/android/util')
-rw-r--r-- | core/java/android/util/LocalLog.java | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/core/java/android/util/LocalLog.java b/core/java/android/util/LocalLog.java new file mode 100644 index 0000000..641d1b4 --- /dev/null +++ b/core/java/android/util/LocalLog.java @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2006 The Android Open Source Project + * + * 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 android.util; + +import android.text.format.Time; + +import java.io.FileDescriptor; +import java.io.PrintWriter; +import java.io.StringWriter; +import java.util.Iterator; +import java.util.LinkedList; + +/** + * @hide + */ +public final class LocalLog { + + private LinkedList<String> mLog; + private int mMaxLines; + private Time mNow; + + public LocalLog(int maxLines) { + mLog = new LinkedList<String>(); + mMaxLines = maxLines; + mNow = new Time(); + } + + public synchronized void log(String msg) { + if (mMaxLines > 0) { + mNow.setToNow(); + mLog.add(mNow.format("%H:%M:%S") + " - " + msg); + while (mLog.size() > mMaxLines) mLog.remove(); + } + } + + public synchronized void dump(FileDescriptor fd, PrintWriter pw, String[] args) { + Iterator<String> itr = mLog.listIterator(0); + while (itr.hasNext()) { + pw.println(itr.next()); + } + } +} |