/*
* 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.jclouds.vcloud.binders;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.jclouds.vcloud.reference.VCloudConstants.PROPERTY_VCLOUD_XML_NAMESPACE;
import static org.jclouds.vcloud.reference.VCloudConstants.PROPERTY_VCLOUD_XML_SCHEMA;
import java.util.Map;
import java.util.Properties;
import javax.inject.Named;
import javax.inject.Singleton;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import org.jclouds.http.HttpRequest;
import org.jclouds.rest.MapBinder;
import org.jclouds.rest.binders.BindToStringPayload;
import org.jclouds.rest.internal.GeneratedHttpRequest;
import org.jclouds.vcloud.VCloudMediaType;
import org.jclouds.vcloud.options.CaptureVAppOptions;
import com.google.inject.Inject;
import com.jamesmurty.utils.XMLBuilder;
/**
*
* @author Adrian Cole
*
*/
@Singleton
public class BindCaptureVAppParamsToXmlPayload implements MapBinder {
protected final String ns;
protected final String schema;
private final BindToStringPayload stringBinder;
@Inject
public BindCaptureVAppParamsToXmlPayload(BindToStringPayload stringBinder,
@Named(PROPERTY_VCLOUD_XML_NAMESPACE) String ns, @Named(PROPERTY_VCLOUD_XML_SCHEMA) String schema) {
this.ns = ns;
this.schema = schema;
this.stringBinder = stringBinder;
}
@Override
public <R extends HttpRequest> R bindToRequest(R request, Map<String, Object> postParams) {
checkArgument(checkNotNull(request, "request") instanceof GeneratedHttpRequest,
"this binder is only valid for GeneratedHttpRequests!");
GeneratedHttpRequest gRequest = (GeneratedHttpRequest) request;
String templateName = checkNotNull(postParams.remove("templateName"), "templateName").toString();
String vApp = checkNotNull(postParams.remove("vApp"), "vApp").toString();
CaptureVAppOptions options = findOptionsInArgsOrNull(gRequest);
if (options == null) {
options = new CaptureVAppOptions();
}
try {
return stringBinder.bindToRequest(request, generateXml(templateName, vApp, options));
} catch (ParserConfigurationException e) {
throw new RuntimeException(e);
} catch (FactoryConfigurationError e) {
throw new RuntimeException(e);
} catch (TransformerException e) {
throw new RuntimeException(e);
}
}
protected String generateXml(String templateName, String vApp, CaptureVAppOptions options)
throws ParserConfigurationException, FactoryConfigurationError, TransformerException {
XMLBuilder rootBuilder = buildRoot(templateName);
if (options.getDescription() != null)
rootBuilder.e("Description").text(options.getDescription());
rootBuilder.e("Source").a("href", vApp).a("type", VCloudMediaType.VAPP_XML);
Properties outputProperties = new Properties();
outputProperties.put(javax.xml.transform.OutputKeys.OMIT_XML_DECLARATION, "yes");
return rootBuilder.asString(outputProperties);
}
protected XMLBuilder buildRoot(String name) throws ParserConfigurationException, FactoryConfigurationError {
XMLBuilder rootBuilder = XMLBuilder.create("CaptureVAppParams").a("name", name).a("xmlns", ns)
.a("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance").a("xsi:schemaLocation", ns + " " + schema);
return rootBuilder;
}
protected CaptureVAppOptions findOptionsInArgsOrNull(GeneratedHttpRequest gRequest) {
for (Object arg : gRequest.getInvocation().getArgs()) {
if (arg instanceof CaptureVAppOptions) {
return (CaptureVAppOptions) arg;
} else if (arg instanceof CaptureVAppOptions[]) {
CaptureVAppOptions[] options = (CaptureVAppOptions[]) arg;
return (options.length > 0) ? options[0] : null;
}
}
return null;
}
@Override
public <R extends HttpRequest> R bindToRequest(R request, Object input) {
throw new IllegalStateException("CaptureVAppParams is needs parameters");
}
protected String ifNullDefaultTo(String value, String defaultValue) {
return value != null ? value : checkNotNull(defaultValue, "defaultValue");
}
}