/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.lenya.cms.site.usecases;
import java.io.IOException;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.cocoon.servlet.multipart.Part;
import org.apache.lenya.cms.metadata.MetaDataException;
import org.apache.lenya.cms.publication.Document;
import org.apache.lenya.cms.publication.DocumentException;
import org.apache.lenya.cms.publication.ResourceWrapper;
import org.apache.lenya.cms.repository.RepositoryException;
import org.apache.lenya.util.ServletHelper;
/**
* Create a new resource document.
*/
public class CreateResource extends CreateDocument {
protected static final String PARAMETER_FILE = "file";
protected static final String PARAMETER_CAN_SUBMIT = "canSubmit";
protected static final String MESSAGE_UPLOAD_DISABLED = "upload-disabled";
protected static final String MESSAGE_UPLOAD_ENTER_TITLE = "upload-enter-title";
protected static final String MESSAGE_UPLOAD_CHOOSE_FILE = "upload-choose-file";
protected static final String MESSAGE_UPLOAD_SIZE_EXCEEDED = "upload-size-exceeded";
protected static final String MESSAGE_UPLOAD_RESET = "upload-reset";
protected static final String MESSAGE_UPLOAD_MISSING_EXTENSION = "upload-missing-extension";
protected void doCheckPreconditions() throws Exception {
super.doCheckPreconditions();
if (!ServletHelper.isUploadEnabled(this.manager)) {
addErrorMessage(MESSAGE_UPLOAD_DISABLED);
setParameter(PARAMETER_CAN_SUBMIT, Boolean.FALSE);
}
}
/**
* @see org.apache.lenya.cms.usecase.AbstractUsecase#doCheckExecutionConditions()
*/
protected void doCheckExecutionConditions() throws Exception {
super.doCheckExecutionConditions();
Part file = getPart(PARAMETER_FILE);
if (hasErrors() && file != null) {
resetUploadField();
} else {
if (file == null) {
addErrorMessage(MESSAGE_UPLOAD_CHOOSE_FILE);
} else if (file.isRejected()) {
String[] params = { Integer.toString(file.getSize()) };
addErrorMessage(MESSAGE_UPLOAD_SIZE_EXCEEDED, params);
}
}
}
/**
* The browser can't set the value of the file upload widget for security reasons, so we have to
* remove the file parameter and the user has to select the file again.
*/
protected void resetUploadField() {
deleteParameter(PARAMETER_FILE);
addErrorMessage(MESSAGE_UPLOAD_RESET);
}
/**
* @see org.apache.lenya.cms.usecase.AbstractUsecase#initParameters()
*/
protected void initParameters() {
super.initParameters();
deleteParameter(RESOURCE_TYPES);
}
/**
* @see org.apache.lenya.cms.usecase.AbstractUsecase#doExecute()
*/
protected void doExecute() throws Exception {
super.doExecute();
addResource();
}
/**
* Adds the ressource. If asset upload is not enabled, an error message is added.
* @throws IOException
* @throws ServiceException
* @throws DocumentException
* @throws MetaDataException
* @throws RepositoryException
*/
protected void addResource() throws ServiceException, IOException, DocumentException,
RepositoryException, MetaDataException {
if (getLogger().isDebugEnabled())
getLogger().debug("Assets::addAsset() called");
Part file = getPart(PARAMETER_FILE);
Document document = getNewDocument();
ResourceWrapper wrapper = new ResourceWrapper(document, this.manager, getLogger());
wrapper.write(file);
}
protected String getSourceExtension() {
String extension = "";
Part file = getPart(PARAMETER_FILE);
String fileName = file.getFileName();
int lastDotIndex = fileName.lastIndexOf(".");
if (lastDotIndex > -1) {
extension = fileName.substring(lastDotIndex + 1);
} else {
addErrorMessage(MESSAGE_UPLOAD_MISSING_EXTENSION);
}
return extension.toLowerCase();
}
}