001/*
002 * (C) Copyright 2013 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Stephane Lacoin
018 */
019package org.nuxeo.ecm.core.management.jtajca;
020
021import java.io.ByteArrayOutputStream;
022import java.io.IOException;
023import java.io.PrintStream;
024
025import javax.management.MalformedObjectNameException;
026import javax.management.ObjectName;
027
028import org.nuxeo.ecm.core.api.CoreSessionService.CoreSessionRegistrationInfo;
029
030public class Defaults {
031
032    public static final Defaults instance = new Defaults();
033
034    public String name(Class<?> clazz) {
035        return name(clazz, "default");
036    }
037
038    public String name(Class<?> clazz, String name) {
039        return clazz.getPackage().getName() + ":type=" + clazz.getSimpleName() + ",name=" + name;
040    }
041
042    public ObjectName objectName(Class<?> clazz, String name) {
043        try {
044            return new ObjectName(name(clazz, name));
045        } catch (MalformedObjectNameException e) {
046            throw new UnsupportedOperationException("Cannot build  " + name, e);
047        }
048    }
049
050    public String printStackTrace(CoreSessionRegistrationInfo info) {
051        try (ByteArrayOutputStream bos = new ByteArrayOutputStream();) {
052            info.printStackTrace(new PrintStream(bos));
053            return bos.toString();
054        } catch (IOException e) {
055            throw new RuntimeException("Cannot write stack to byte array", e);
056        }
057    }
058}