/**
* Copyright (C) 2012 JBoss Inc
*
* 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 org.jboss.dashboard.ui.components;
import org.jboss.dashboard.Application;
import org.jboss.dashboard.factory.Component;
import org.jboss.dashboard.factory.ComponentsTree;
import org.jboss.dashboard.factory.Factory;
import org.jboss.dashboard.factory.LookupException;
import org.jboss.dashboard.ui.formatters.FactoryURL;
import org.jboss.dashboard.ui.controller.CommandRequest;
import org.jboss.dashboard.ui.controller.CommandResponse;
import org.apache.commons.lang.StringUtils;
import java.io.File;
import java.text.ParseException;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
public class FactoryRequestHandler {
private static transient org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory.getLog(FactoryRequestHandler.class.getName());
public CommandResponse handleRequest(CommandRequest request) throws Exception {
// Set factory bean values
setBeanValues(request);
// Handle it
return performRequestHandling(request);
}
protected void setBeanValues(CommandRequest request) {
Map paramsMap = request.getRequestObject().getParameterMap();
Map filesMap = request.getFilesByParamName();
Set beansModified = new HashSet();
//Normal parameters
for (Iterator it = paramsMap.keySet().iterator(); it.hasNext();) {
String paramName = (String) it.next();
try {
FactoryURL fUrl = FactoryURL.getURL(paramName);
boolean newBeanProcessed = beansModified.add(fUrl.getComponentName());
String[] paramValues = (String[]) paramsMap.get(paramName);
setBeanValue(fUrl, paramValues, newBeanProcessed);
} catch (ParseException e) {
if (log.isDebugEnabled()) log.debug("Parameter " + paramName + " is not for setting a bean property.");
} catch (LookupException e) {
log.error("Error: ", e);
}
}
//File parameters
for (Iterator it = filesMap.keySet().iterator(); it.hasNext();) {
String paramName = (String) it.next();
try {
FactoryURL fUrl = FactoryURL.getURL(paramName);
boolean newBeanProcessed = beansModified.add(fUrl.getComponentName());
File file = (File) filesMap.get(paramName);
setBeanValue(fUrl, file, newBeanProcessed);
} catch (ParseException e) {
if (log.isDebugEnabled()) log.debug("Parameter " + paramName + " is not for setting a bean property.");
} catch (LookupException e) {
log.error("Error: ", e);
}
}
}
protected void setBeanValue(FactoryURL fUrl, File file, boolean firstTime) throws LookupException {
ComponentsTree componentsTree = Application.lookup().getGlobalFactory().getTree();
Component component = componentsTree.getComponent(fUrl.getComponentName());
if (component == null) {
log.error("Cannot write to component " + fUrl.getComponentName() + " as it doesn't exist.");
} else {
if (firstTime) {
Object o = component.getObject();
if (o instanceof HandlerFactoryElement) {
((HandlerFactoryElement) o).clearFieldErrors();
}
}
try {
component.setProperty(fUrl.getPropertyName(), file);
}
catch (Exception e) {
Object o = component.getObject();
if (o instanceof HandlerFactoryElement) {
((HandlerFactoryElement) o).addFieldError(fUrl, e, file);
} else {
log.warn("Error setting value to " + fUrl + " is ignored.");
}
}
}
}
protected void setBeanValue(FactoryURL fUrl, String[] paramValues, boolean firstTime) throws LookupException {
ComponentsTree componentsTree = Application.lookup().getGlobalFactory().getTree();
Component component = componentsTree.getComponent(fUrl.getComponentName());
if (component == null) {
log.error("Cannot write to component " + fUrl.getComponentName() + " as it doesn't exist.");
} else {
if (firstTime) {
Object o = component.getObject();
if (o instanceof HandlerFactoryElement) {
((HandlerFactoryElement) o).clearFieldErrors();
}
}
try {
component.setProperty(fUrl.getPropertyName(), paramValues);
}
catch (Exception e) {
Object o = component.getObject();
if (o instanceof HandlerFactoryElement) {
((HandlerFactoryElement) o).addFieldError(fUrl, e, paramValues);
} else {
log.warn("Error setting value to " + fUrl + " is ignored.");
}
}
}
}
protected CommandResponse performRequestHandling(CommandRequest request) throws Exception {
String handlerComponentName = request.getRequestObject().getParameter(FactoryURL.PARAMETER_BEAN);
String handlerComponentProperty = request.getRequestObject().getParameter(FactoryURL.PARAMETER_PROPERTY);
if (!StringUtils.isEmpty(handlerComponentName) && !StringUtils.isEmpty(handlerComponentProperty)) {
HandlerFactoryElement handlerComponent = null;
try {
handlerComponent = (HandlerFactoryElement) Factory.lookup(handlerComponentName);
} catch (ClassCastException cce) {
log.error("Component "+handlerComponentName+" is not a HandlerFactoryElement. It cannot process factory actions. ");
}
if (handlerComponent != null) {
return handle(handlerComponent, handlerComponentProperty, request);
} else {
log.error("Unexistant component specified for request handling: " + handlerComponentName);
}
}
return null;
}
protected CommandResponse handle(HandlerFactoryElement handlerComponent, String property, CommandRequest request) throws Exception {
return handlerComponent.handle(request, property);
}
}