227 lines
8.8 KiB
Java
227 lines
8.8 KiB
Java
package org.gcube.datatransfer.resolver.catalogue;
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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.commons.lang.StringUtils;
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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.ApplicationProfile;
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import org.gcube.datatransfer.resolver.applicationprofile.ApplicationProfileNotFoundException;
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import org.gcube.datatransfer.resolver.applicationprofile.GcubeQuery;
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import org.gcube.datatransfer.resolver.applicationprofile.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 ApplicationProfileReaderForCatalogueResolver {
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protected static final String RESOURCE_PROFILE_BODY_END_POINT_VRE_TEXT = "/Resource/Profile/Body/EndPoint/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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protected static final String SECONDARY_TYPE = "ApplicationProfile";
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protected static final String RESOURCE_NAME = "Catalogue-Resolver";
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private Logger logger = Logger.getLogger(ApplicationProfileReaderForCatalogueResolver.class);
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private String secondaryType;
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private String resourceName;
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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 for catalogue resolver.
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*
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* @param scope the scope
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* @param portletClassName the portlet class name
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* @param useRootScope the use root scope
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*/
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public ApplicationProfileReaderForCatalogueResolver(String scope, boolean useRootScope) {
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this.scope = scope;
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this.secondaryType = SECONDARY_TYPE;
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this.resourceName = RESOURCE_NAME;
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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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ApplicationProfile appProf = new ApplicationProfile();
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String queryString = GcubeQuery.getGcubeGenericQueryString(secondaryType, resourceName);
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String originalScope = null;
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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 ApplicationProfile in the infra scope: "+discoveryScope+", SecondaryType: " + secondaryType + ", AppId: " + resourceName);
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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("ApplicationProfile with SecondaryType: " + secondaryType + ", AppId: " + resourceName +" is not registered in the infra 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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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 n 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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if (currValue != null && currValue.size() > 0) {
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List<String> scopes = currValue;
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String currentScope = scopes.get(0);
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int slashCount = StringUtils.countMatches(currentScope, "/");
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if(slashCount < 3){//CASE not VRE - set session scope
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logger.info("Scope "+ scope.toString() + " is not a VRE");
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List<String> listSessionScope = helper.evaluate("/Resource/Profile/Body/EndPoint[Scope='"+scope.toString()+"']/Sessionscope/text()"); //get session scope of i+1-mo scope
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if(listSessionScope!=null && listSessionScope.size()>0){ //If sessions scope exists
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logger.trace("setting session scope "+ listSessionScope.get(0));
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appProf.setScope(listSessionScope.get(0));
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}
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else{
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logger.trace("session scope not exists setting scope "+ scope.toString());
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appProf.setScope(scope.toString());
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}
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}
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else{ //CASE IS A VRE
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logger.info("Scope "+ scope.toString() + " is a VRE");
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appProf.setScope(scope.toString());
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}
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//RETRIEVE URL
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currValue = helper.evaluate("/Resource/Profile/Body/EndPoint[Scope='"+scope.toString()+"']/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());
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}
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else throw new ApplicationProfileNotFoundException("Your applicationProfile URL was not found in the profile for Scope: " + scope.toString());
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}
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else throw new ApplicationProfileNotFoundException("Your applicationProfile with scope "+scope.toString()+" was not found in the profile, consider adding <EndPoint><Scope> element in <Body>");
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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 setted 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(resourceName);
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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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/*
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public static void main(String[] args) {
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String portletClassName = "org.gcube.portlets.user.gisviewerapp.server.GisViewerAppServiceImpl";
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String scope ="/gcube";
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String secondaryType = "ApplicationProfile";
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ApplicationProfileReader reader = new ApplicationProfileReader(scope, secondaryType, portletClassName);
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System.out.println(reader);
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}*/
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}
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