/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved.
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.wcs.web.demo;
import java.io.ByteArrayOutputStream;
import java.util.Collections;
import java.util.logging.Level;
import javax.servlet.http.HttpServletRequest;
import javax.xml.transform.TransformerException;
import org.apache.wicket.Page;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.form.AjaxSubmitLink;
import org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.model.Model;
import org.apache.wicket.protocol.http.WebRequest;
import org.geoserver.ows.URLMangler.URLType;
import org.geoserver.ows.util.ResponseUtils;
import org.geoserver.wcs.web.demo.GetCoverageRequest.Version;
import org.geoserver.web.GeoServerBasePage;
import org.geoserver.web.demo.DemoRequest;
import org.geoserver.web.demo.DemoRequestResponse;
import org.geoserver.web.demo.PlainCodePage;
import org.geotools.xml.transform.TransformerBase;
/**
* Small embedded WCS client enabling users to build a wcs GetCoverage request (and as a side effect
* also showing what capabilities and describe process would provide) using
*
* @author Andrea Aime - OpenGeo
*/
@SuppressWarnings("serial")
public class WCSRequestBuilder extends GeoServerBasePage {
ModalWindow responseWindow;
WCSRequestBuilderPanel builder;
public WCSRequestBuilder() {
// the form
Form form = new Form("form");
add(form);
// the actual request builder component
builder = new WCSRequestBuilderPanel("requestBuilder", new GetCoverageRequest());
form.add(builder);
// the xml popup window
final ModalWindow xmlWindow = new ModalWindow("xmlWindow");
add(xmlWindow);
xmlWindow.setPageCreator(new ModalWindow.PageCreator() {
public Page createPage() {
return new PlainCodePage(xmlWindow, responseWindow, getRequestXML());
}
});
// the output response window
responseWindow = new ModalWindow("responseWindow");
add(responseWindow);
responseWindow.setPageMapName("demoResponse");
responseWindow.setCookieName("demoResponse");
responseWindow.setPageCreator(new ModalWindow.PageCreator() {
public Page createPage() {
DemoRequest request = new DemoRequest(null);
HttpServletRequest http = ((WebRequest) WCSRequestBuilder.this.getRequest())
.getHttpServletRequest();
String url = ResponseUtils.buildURL(ResponseUtils.baseURL(http), "ows", Collections
.singletonMap("strict", "true"), URLType.SERVICE);
request.setRequestUrl(url);
request.setRequestBody((String) responseWindow.getDefaultModelObject());
return new DemoRequestResponse(new Model(request));
}
});
form.add(new AjaxSubmitLink("execute") {
@Override
protected void onSubmit(AjaxRequestTarget target, Form form) {
responseWindow.setDefaultModel(new Model(getRequestXML()));
responseWindow.show(target);
}
@Override
protected void onError(AjaxRequestTarget target, Form form) {
super.onError(target, form);
target.addComponent(builder.getFeedbackPanel());
}
});
form.add(new AjaxSubmitLink("executeXML") {
@Override
protected void onSubmit(AjaxRequestTarget target, Form form) {
try {
getRequestXML();
xmlWindow.show(target);
} catch (Exception e) {
error(e.getMessage());
target.addComponent(getFeedbackPanel());
}
}
@Override
protected void onError(AjaxRequestTarget target, Form form) {
target.addComponent(getFeedbackPanel());
}
});
}
String getRequestXML() {
ByteArrayOutputStream out = new ByteArrayOutputStream();
TransformerBase tx;
if (builder.getCoverage.version == Version.v1_0_0) {
tx = new WCS10GetCoverageTransformer(getCatalog());
} else {
tx = new WCS11GetCoverageTransformer(getCatalog());
}
try {
tx.setIndentation(2);
tx.transform(builder.getCoverageRequest(), out);
} catch (TransformerException e) {
LOGGER.log(Level.SEVERE, "Error generating xml request", e);
error(e);
}
return out.toString();
}
}