de.openknowledge.cdi.monitoring.ComponentStatus.java Source code

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Here is the source code for de.openknowledge.cdi.monitoring.ComponentStatus.java

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/*
 * Copyright open knowledge GmbH
 *
 * 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 de.openknowledge.cdi.monitoring;

import org.apache.commons.lang.SystemUtils;
import org.apache.commons.lang.exception.ExceptionUtils;

/**
 * The component status indicates the current status of a component. Components
 * can be arbitrary software components identified by a name.
 *
 * @author Jens Schumann - OpenKnowledge GmbH
 * @version $Revision: 7797 $
 */
public class ComponentStatus {

    private ComponentStatusType status;
    private String component;
    private String statusMessage;

    public ComponentStatus(String aComponent) {
        component = aComponent;
        status = ComponentStatusType.OK;
    }

    public ComponentStatus(Class aClazz) {
        this(aClazz.getSimpleName());
    }

    public ComponentStatus(String aComponent, ComponentStatusType aStatus, String aStatusMessage) {
        component = aComponent;
        status = aStatus;
        statusMessage = aStatusMessage;
    }

    public ComponentStatus(Class aClazz, ComponentStatusType aStatus, String aStatusMessage) {
        this(aClazz.getSimpleName(), aStatus, aStatusMessage);
    }

    public ComponentStatus(String aComponent, Throwable t) {
        status = ComponentStatusType.ERROR;
        component = aComponent;
        statusMessage = serializeError(t);
    }

    public ComponentStatus(Class aClazz, Throwable t) {
        this(aClazz.getSimpleName(), t);
    }

    public ComponentStatus(String aComponent, String aStatusMessage, Throwable t) {
        status = ComponentStatusType.ERROR;
        component = aComponent;
        statusMessage = aStatusMessage + " - " + serializeError(t);
    }

    public ComponentStatus(Class aClazz, String aStatusMessage, Throwable t) {
        this(aClazz.getSimpleName(), aStatusMessage, t);
    }

    public ComponentStatusType getStatus() {
        return status;
    }

    public String getComponent() {
        return component;
    }

    public String getStatusMessage() {
        return statusMessage;
    }

    public boolean isOK() {
        return status == ComponentStatusType.OK;
    }

    public String toString() {
        final StringBuffer sb = new StringBuffer();
        sb.append(component);
        sb.append(" - ");
        sb.append(status);
        if (statusMessage != null) {
            sb.append(" (");
            int i = statusMessage.indexOf("\n");
            if (i > 0) {
                sb.append(statusMessage.substring(0, i));
            } else {
                sb.append(statusMessage);
            }
            sb.append(")");
        }
        return sb.toString();
    }

    protected String serializeError(Throwable aT) {
        return ExceptionUtils.getMessage(aT) + SystemUtils.LINE_SEPARATOR + ExceptionUtils.getStackTrace(aT);
    }
}