PicoContainer example source code file (ComponentMonitorHelper.java)

This example PicoContainer source code file (ComponentMonitorHelper.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - PicoContainer tags/keywords

class, class, componentmonitorhelper, field, instantiating, invoking, no, no_component, picocontainer, picocontainer, reflection, string, string, stringbuffer, stringbuffer, text

The PicoContainer ComponentMonitorHelper.java source code

/*****************************************************************************
 * Copyright (C) PicoContainer Organization. All rights reserved.            *
 * ------------------------------------------------------------------------- *
 * The software in this package is published under the terms of the BSD      *
 * style license a copy of which has been included with this distribution in *
 * the LICENSE.txt file.                                                     *
 *                                                                           *
 * Original code by Paul Hammaant                                            *
 *****************************************************************************/

package org.picocontainer.monitors;

import java.text.MessageFormat;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.Field;
import java.lang.reflect.Member;

import org.picocontainer.ComponentMonitor;

/**
 * An abstract {@link ComponentMonitor} which supports all the message formats.
 * 
 * @author Mauro Talevi
 * @version $Revision: $
 */
public final class ComponentMonitorHelper  {

    public final static String INSTANTIATING = "PicoContainer: instantiating {0}";
    public final static String INSTANTIATED = "PicoContainer: instantiated {0} [{1} ms], component {2}, injected [{3}]";
    public final static String INSTANTIATION_FAILED = "PicoContainer: instantiation failed: {0}, reason: {1}";
    public final static String INVOKING = "PicoContainer: invoking {0} on {1}";
    public final static String INVOKED = "PicoContainer: invoked {0} on {1} [{2} ms]";
    public final static String INVOCATION_FAILED = "PicoContainer: invocation failed: {0} on {1}, reason: {2}";
    public final static String LIFECYCLE_INVOCATION_FAILED = "PicoContainer: lifecycle invocation failed: {0} on {1}, reason: {2}";
    public final static String NO_COMPONENT = "PicoContainer: No component for key: {0}";

    public static String format(String template, Object... arguments) {
        return MessageFormat.format(template, arguments);
    }

    public static String parmsToString(Object[] injected) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < injected.length; i++) {
            String s = injected[i].getClass().getName();
            sb.append(s);
            if (i < injected.length-1) {
                sb.append(", ");
            }
        }
        return sb.toString();
    }

    public static String ctorToString(Constructor constructor) {
        Class[] params = constructor.getParameterTypes();
        StringBuffer sb = new StringBuffer(constructor.getName());
        sb.append("(");
        for (int i = 0; i < params.length; i++) {
            String s = params[i].getName();
            sb.append(s);
            if (i < params.length-1) {
                sb.append(", ");
            }
        }
        sb.append(")");
        return sb.toString();
    }

    public static String methodToString(Method method) {
        Class[] params = method.getParameterTypes();
        StringBuffer sb = new StringBuffer(method.getName());
        sb.append("(");
        for (int i = 0; i < params.length; i++) {
            String s = params[i].getName();
            sb.append(s);
            if (i < params.length-1) {
                sb.append(", ");
            }
        }
        sb.append(")");
        return sb.toString();
    }

    public static String memberToString(Member m) {
        if (m instanceof Field) {
            return toString((Field) m);
        } else {
            return methodToString((Method) m);
        }
    }

    public static String toString(Field field) {
        StringBuffer sb = new StringBuffer(field.getName());
        sb.append("(").append(field.getName()).append(")");
        return sb.toString();
    }

}