PolicyImpl.java
/*
* Copyright (c) 2008, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* 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.wso2.carbon.governance.api.policies.dataobjects;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.governance.api.common.dataobjects.GovernanceArtifact;
import org.wso2.carbon.governance.api.common.dataobjects.GovernanceArtifactImpl;
import org.wso2.carbon.governance.api.exception.GovernanceException;
import org.wso2.carbon.registry.core.Registry;
import org.wso2.carbon.registry.core.Resource;
import org.wso2.carbon.registry.core.exceptions.RegistryException;
import org.wso2.carbon.registry.core.utils.RegistryUtils;
import javax.xml.namespace.QName;
import java.util.List;
import java.util.Properties;
import java.util.Set;
/**
* This represents a policy artifact stored on the Registry. Policy artifacts are created as a
* result of importing or uploading a policy.
*/
public class PolicyImpl extends GovernanceArtifactImpl implements Policy {
private static final Log log = LogFactory.getLog(PolicyImpl.class);
private String name;
private String url;
private String policyContent;
/**
* Constructor accepting resource path, identifier and a registry instance.
* This constructor should be used only when the policy already saved in the registry.
*
* @param path the resource path.
* @param id the resource identifier.
* @param registry the registry instance.
*
* @throws GovernanceException if the construction fails.
*/
public PolicyImpl(String id, Registry registry) throws GovernanceException {
super(id);
associateRegistry(registry);
loadPolicyDetails();
}
/**
* Constructor accepting resource identifier and the policy URL.
*
* @param id the resource identifier.
* @param url the policy URL.
*/
public PolicyImpl(String id, String url) {
super(id);
this.url = url;
}
public QName getQName() {
if (name == null) {
return null;
}
// for the policy QName there are no
return new QName(name);
}
/**
* Method to obtain the policy element of this policy artifact.
*
* @return the policy element.
*/
@Override
public String getPolicyContent() {
return policyContent;
}
/**
* Method to set the policy element of this policy artifact.
*
* @param policyContent the policy element.
*/
@Override
@SuppressWarnings("unused")
public void setPolicyContent(String policyContent) {
this.policyContent = policyContent;
}
/**
* Method to obtain the policy URL.
*
* @return the policy URL.
*/
public String getUrl() {
return url;
}
/**
* Method to set the name of the policy.
*
* @param name the name of the policy.
*/
public void setName(String name) {
this.name = name;
}
/**
* Method to load the policy details into this artifact.
*
* @throws GovernanceException if the operation failed.
*/
public void loadPolicyDetails() throws GovernanceException {
checkRegistryResourceAssociation();
Registry registry = getAssociatedRegistry();
String path = getPath();
String id = getId();
Resource resource;
try {
resource = registry.get(path);
byte[] content = (byte[]) resource.getContent();
policyContent = RegistryUtils.decodeBytes(content);
} catch (RegistryException e) {
String msg =
"Error in getting the content for the artifact. artifact id: " + id + ", " +
"path: " + path + ".";
log.error(msg);
throw new GovernanceException(msg, e);
}
// get the target namespace.
name = RegistryUtils.getResourceName(path);
// and then iterate all the properties and add.
Properties properties = resource.getProperties();
if (properties != null) {
Set keySet = properties.keySet();
if (keySet != null) {
for (Object keyObj : keySet) {
String key = (String) keyObj;
// if (key.equals(GovernanceConstants.ARTIFACT_ID_PROP_KEY)) {
// it is not a property.
// continue;
// }
List values = (List) properties.get(key);
if (values != null) {
for (Object valueObj : values) {
String value = (String) valueObj;
addAttribute(key, value);
}
}
}
}
}
}
/**
* Method to set the qualified name of this service artifact.
*
* @param qName the qualified name.
*
* @throws GovernanceException if the operation failed.
*/
public void setQName(QName qName) throws GovernanceException {
// the path will be synced with the qualified name
this.name = qName.getLocalPart();
}
}