com.codecrate.shard.ui.event.commandbus.MethodInvokingActionCommandExecutor.java Source code

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Here is the source code for com.codecrate.shard.ui.event.commandbus.MethodInvokingActionCommandExecutor.java

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/*
 * Copyright 2002-2004 the original author or authors.
 *
 * 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 com.codecrate.shard.ui.event.commandbus;

import java.util.Collections;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.support.ArgumentConvertingMethodInvoker;
import org.springframework.richclient.command.ParameterizableActionCommandExecutor;

public class MethodInvokingActionCommandExecutor extends ArgumentConvertingMethodInvoker
        implements ParameterizableActionCommandExecutor {
    private static final Log LOG = LogFactory.getLog(MethodInvokingActionCommandExecutor.class);

    public MethodInvokingActionCommandExecutor(Object targetObject, String methodName) {
        setTargetObject(targetObject);
        setTargetMethod(methodName);
    }

    public void execute() {
        execute(Collections.EMPTY_MAP);
    }

    public void execute(Map params) {
        setArguments(params.values().toArray());
        try {
            LOG.debug("Invoking method " + getTargetMethod() + " on object " + getTargetObject()
                    + " with arguments " + stringifyArguments());
            prepare();
            invoke();
        } catch (Exception e) {
            throw new RuntimeException("Error executing method " + getTargetMethod() + " on object "
                    + getTargetObject() + " with arguments " + stringifyArguments(), e);
        }
    }

    private String stringifyArguments() {
        Object[] args = getArguments();
        if (null == args) {
            return "";
        }
        StringBuffer buffer = new StringBuffer();
        for (int x = 0; x < args.length; x++) {
            Object arg = args[x];
            buffer.append(arg);
            buffer.append(", ");
        }
        return buffer.toString();
    }
}