199 lines
7.7 KiB
Java
199 lines
7.7 KiB
Java
package org.gcube.datatransfer.resolver.applicationprofile;
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import static org.gcube.resources.discovery.icclient.ICFactory.client;
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import java.io.StringReader;
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import java.util.List;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import org.apache.log4j.Logger;
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import org.gcube.common.resources.gcore.utils.XPathHelper;
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import org.gcube.common.scope.api.ScopeProvider;
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import org.gcube.datatransfer.resolver.applicationprofile.GcubeQuery.FIELD_TYPE;
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import org.gcube.datatransfer.resolver.util.ScopeUtil;
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import org.gcube.resources.discovery.client.api.DiscoveryClient;
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import org.gcube.resources.discovery.client.queries.api.Query;
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import org.gcube.resources.discovery.client.queries.impl.QueryBox;
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import org.w3c.dom.Node;
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import org.xml.sax.InputSource;
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/**
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* The Class ApplicationProfileReader.
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*
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* @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
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* Sep 6, 2016
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*/
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public class ApplicationProfileReader {
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/**
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*
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*/
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private static final String RESOURCE_PROFILE_BODY_END_POINT_URL = "/Resource/Profile/Body/EndPoint/URL";
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protected static final String RESOURCE_PROFILE_BODY_END_POINT_URL_TEXT = RESOURCE_PROFILE_BODY_END_POINT_URL+"/text()";
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protected static final String RESOURCE_PROFILE_BODY_END_POINT_SCOPE_TEXT = "/Resource/Profile/Body/EndPoint/Scope/text()";
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protected static final String RESOURCE_PROFILE_BODY_TEXT = "/Resource/Profile/Body/text()";
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protected static final String RESOURCE_PROFILE_BODY_THUMBNAIL_URL_TEXT = "/Resource/Profile/Body/ThumbnailURL/text()";
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protected static final String RESOURCE_PROFILE_BODY_APP_ID_TEXT = "/Resource/Profile/Body/AppId/text()";
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protected static final String RESOURCE_PROFILE_DESCRIPTION_TEXT = "/Resource/Profile/Description/text()";
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protected static final String RESOURCE_PROFILE_NAME_TEXT = "/Resource/Profile/Name/text()";
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private Logger logger = Logger.getLogger(ApplicationProfileReader.class);
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private String secondaryType;
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private String appId;
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private String scope;
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private ApplicationProfile applicationProfile;
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private boolean useRootScope = false;
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/**
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* Instantiates a new application profile reader.
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*
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* @param scope - the scope where to search the Application Profile
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* @param secondaryType the secondary type of Application Profile
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* @param portletClassName - the AppId of Generic Resource
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* @param useRootScope the use root scope, if true the root scope is used to discovery the Application Profile, otherwise scope is used
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*/
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public ApplicationProfileReader(String scope, String secondaryType, String portletClassName, boolean useRootScope) {
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this.scope = scope;
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this.secondaryType = secondaryType;
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this.appId = portletClassName;
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this.useRootScope = useRootScope;
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this.applicationProfile = readProfileFromInfrastrucure();
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}
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/**
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* Gets the application profile.
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*
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* @return the application profile
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*/
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public ApplicationProfile getApplicationProfile() {
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return applicationProfile;
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}
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/**
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* this method looks up the applicationProfile profile among the ones available in the infrastructure.
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*
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* @return the applicationProfile profile
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*/
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private ApplicationProfile readProfileFromInfrastrucure() {
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String originalScope = ScopeProvider.instance.get();
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ApplicationProfile appProf = new ApplicationProfile();
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String queryString = GcubeQuery.getGcubeGenericResource(secondaryType, FIELD_TYPE.APP_ID, appId);
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try {
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originalScope = ScopeProvider.instance.get();
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String discoveryScope = useRootScope?ScopeUtil.getInfrastructureNameFromScope(scope):scope;
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ScopeProvider.instance.set(discoveryScope);
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logger.info("Trying to fetch Generic Resource in the scope: "+discoveryScope+", SecondaryType: " + secondaryType + ", AppId: " + appId);
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Query q = new QueryBox(queryString);
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DiscoveryClient<String> client = client();
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List<String> appProfile = client.submit(q);
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if (appProfile == null || appProfile.size() == 0)
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throw new ApplicationProfileNotFoundException("Generic Resource with SecondaryType: " + secondaryType + ", AppId: " + appId +" is not registered in the scope: "+discoveryScope);
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else {
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String elem = appProfile.get(0);
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DocumentBuilder docBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
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Node node = docBuilder.parse(new InputSource(new StringReader(elem))).getDocumentElement();
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XPathHelper helper = new XPathHelper(node);
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//set scope
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appProf.setScope(discoveryScope);
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List<String> currValue = null;
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currValue = helper.evaluate(RESOURCE_PROFILE_NAME_TEXT);
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if (currValue != null && currValue.size() > 0) {
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appProf.setName(currValue.get(0));
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}
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else throw new ApplicationProfileNotFoundException("Your ApplicationProfile NAME was not found in the profile");
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currValue = helper.evaluate(RESOURCE_PROFILE_DESCRIPTION_TEXT);
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if (currValue != null && currValue.size() > 0) {
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appProf.setDescription(currValue.get(0));
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}
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else logger.warn("No Description exists for " + appProf.getName());
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currValue = helper.evaluate(RESOURCE_PROFILE_BODY_APP_ID_TEXT);
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if (currValue != null && currValue.size() > 0) {
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appProf.setKey(currValue.get(0));
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}
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else throw new ApplicationProfileNotFoundException("Your ApplicationProfile ID was not found in the profile, consider adding <AppId> element in <Body>");
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currValue = helper.evaluate(RESOURCE_PROFILE_BODY_THUMBNAIL_URL_TEXT);
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if (currValue != null && currValue.size() > 0) {
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appProf.setImageUrl(currValue.get(0));
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}
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else{
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logger.warn("Null or empty <ThumbnailURL> element in <Body>" + appProf.getName());
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}
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//currValue = helper.evaluate("/Resource/Profile/Body/EndPoint[Scope='"+scope.toString()+"']/Scope/text()");
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//RETRIEVE URL
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currValue = helper.evaluate(RESOURCE_PROFILE_BODY_END_POINT_URL_TEXT);
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if (currValue != null && currValue.size() > 0) {
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String url = currValue.get(0);
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// System.out.println("URL "+url);
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if(url!=null)
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appProf.setUrl(url);
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else
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throw new ApplicationProfileNotFoundException("Your ApplicationProfile URL was not found in the profile for Scope: " + scope.toString() +", consider adding <EndPoint><URL> element in <Body>");
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}
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else throw new ApplicationProfileNotFoundException("ApplicationProfile with SecondaryType: " + secondaryType + ", AppId: " + appId +" in the scope: "+discoveryScope +" does not contain "+RESOURCE_PROFILE_BODY_END_POINT_URL +" property, please add it");
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return appProf;
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}
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} catch (Exception e) {
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logger.error("Error while trying to fetch applicationProfile profile from the infrastructure", e);
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return null;
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}finally{
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if(originalScope!=null && !originalScope.isEmpty()){
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ScopeProvider.instance.set(originalScope);
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logger.info("scope provider set to orginal scope: "+originalScope);
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}else{
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ScopeProvider.instance.reset();
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logger.info("scope provider reset");
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}
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}
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}
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/* (non-Javadoc)
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* @see java.lang.Object#toString()
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*/
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@Override
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public String toString() {
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StringBuilder builder = new StringBuilder();
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builder.append("ApplicationProfileReader [secondaryType=");
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builder.append(secondaryType);
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builder.append(", appId=");
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builder.append(appId);
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builder.append(", scope=");
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builder.append(scope);
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builder.append(", applicationProfile=");
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builder.append(applicationProfile);
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builder.append("]");
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return builder.toString();
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}
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// public static void main(String[] args) {
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//
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// String portletClassName = "org.gcube.portlets.user.gisviewerapp.server.GisViewerAppServiceImpl";
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// String scope ="/gcube/devNext/NextNext";
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// String secondaryType = "ApplicationProfile";
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// ApplicationProfileReader reader = new ApplicationProfileReader(scope, secondaryType, portletClassName, true);
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//
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// System.out.println(reader);
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//
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// }
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}
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