383 lines
14 KiB
Java
383 lines
14 KiB
Java
package org.gcube.informationsystem.resourceregistry.client;
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import java.io.StringWriter;
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import java.net.MalformedURLException;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.UUID;
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import org.gcube.informationsystem.impl.utils.ISMapper;
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import org.gcube.informationsystem.model.ER;
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import org.gcube.informationsystem.model.ISManageable;
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import org.gcube.informationsystem.model.entity.Context;
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import org.gcube.informationsystem.model.entity.Entity;
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import org.gcube.informationsystem.model.entity.Facet;
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import org.gcube.informationsystem.model.entity.Resource;
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import org.gcube.informationsystem.model.relation.ConsistsOf;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.context.ContextNotFoundException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.er.ERAvailableInAnotherContextException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.er.ERNotFoundException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.query.InvalidQueryException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaNotFoundException;
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import org.gcube.informationsystem.resourceregistry.api.rest.AccessPath;
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import org.gcube.informationsystem.resourceregistry.api.rest.httputils.HTTPCall;
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import org.gcube.informationsystem.resourceregistry.api.rest.httputils.HTTPCall.HTTPMETHOD;
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import org.gcube.informationsystem.resourceregistry.api.utils.Utility;
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import org.gcube.informationsystem.types.TypeBinder;
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import org.gcube.informationsystem.types.TypeBinder.TypeDefinition;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* @author Luca Frosini (ISTI - CNR)
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*/
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public class ResourceRegistryClientImpl implements ResourceRegistryClient {
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private static final Logger logger = LoggerFactory.getLogger(ResourceRegistryClientImpl.class);
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public static final String PATH_SEPARATOR = "/";
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protected final String address;
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protected HTTPCall httpCall;
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public ResourceRegistryClientImpl(String address) {
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this.address = address;
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}
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private HTTPCall getHTTPCall() throws MalformedURLException {
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if (httpCall == null) {
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httpCall = new HTTPCall(address, ResourceRegistryClient.class.getSimpleName());
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}
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return httpCall;
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}
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@Override
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public <ERType extends ER> boolean exists(Class<ERType> clazz, UUID uuid)
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throws ERNotFoundException, ERAvailableInAnotherContextException, ResourceRegistryException {
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String type = Utility.getType(clazz);
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return exists(type, uuid);
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}
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@Override
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public boolean exists(String type, UUID uuid)
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throws ERNotFoundException, ERAvailableInAnotherContextException, ResourceRegistryException {
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try {
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logger.info("Going to check if {} with UUID {} exists", type, uuid);
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StringWriter stringWriter = new StringWriter();
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.ACCESS_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.INSTANCE_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(type);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(uuid.toString());
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HTTPCall httpCall = getHTTPCall();
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httpCall.call(String.class, stringWriter.toString(), HTTPMETHOD.HEAD);
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logger.debug("{} with UUID {} exists", type, uuid);
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return true;
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} catch (ResourceRegistryException e) {
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// logger.trace("Error while checking if {} with UUID {} exists.", type, uuid,
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// e);
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throw e;
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} catch (Exception e) {
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// logger.trace("Error while checking if {} with UUID {} exists.", type, uuid,
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// e);
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throw new RuntimeException(e);
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}
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}
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@Override
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public <ERType extends ER> ERType getInstance(Class<ERType> clazz, UUID uuid)
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throws ERNotFoundException, ERAvailableInAnotherContextException, ResourceRegistryException {
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String type = Utility.getType(clazz);
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String ret = getInstance(type, uuid);
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try {
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return ISMapper.unmarshal(clazz, ret);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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public String getInstance(String type, UUID uuid)
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throws ERNotFoundException, ERAvailableInAnotherContextException, ResourceRegistryException {
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try {
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logger.info("Going to get {} with UUID {}", type, uuid);
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StringWriter stringWriter = new StringWriter();
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.ACCESS_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.INSTANCE_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(type);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(uuid.toString());
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HTTPCall httpCall = getHTTPCall();
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String ret = httpCall.call(String.class, stringWriter.toString(), HTTPMETHOD.GET);
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logger.debug("Got {} with UUID {} is {}", type, uuid, ret);
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return ret;
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} catch (ResourceRegistryException e) {
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// logger.trace("Error while getting {} with UUID {}", type, uuid, e);
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throw e;
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} catch (Exception e) {
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// logger.trace("Error while getting {} with UUID {}", type, uuid, e);
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throw new RuntimeException(e);
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}
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}
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@SuppressWarnings("unchecked")
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@Override
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public <ERType extends ER, R extends Resource> List<R> getInstances(Class<ERType> clazz, Boolean polymorphic)
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throws ResourceRegistryException {
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String type = Utility.getType(clazz);
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String ret = getInstances(type, polymorphic);
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try {
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return (List<R>) ISMapper.unmarshalList(Resource.class, ret);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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@Override
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public String getInstances(String type, Boolean polymorphic) throws ResourceRegistryException {
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try {
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logger.info("Going to get all instances of {} ", type);
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StringWriter stringWriter = new StringWriter();
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.ACCESS_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.INSTANCES_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(type);
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Map<String, String> parameters = new HashMap<>();
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parameters.put(AccessPath.POLYMORPHIC_PARAM, polymorphic.toString());
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HTTPCall httpCall = getHTTPCall();
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String ret = httpCall.call(String.class, stringWriter.toString(), HTTPMETHOD.GET, parameters);
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logger.debug("Got instances of {} are {}", type, ret);
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return ret;
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} catch (ResourceRegistryException e) {
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// logger.trace("Error while getting {} instances", type, e);
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throw e;
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} catch (Exception e) {
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// logger.trace("Error while getting {} instances", type, e);
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throw new RuntimeException(e);
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}
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}
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@Override
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public <ERType extends ER, E extends Entity, R extends Resource> List<R> getInstancesFromEntity(Class<ERType> clazz,
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Boolean polymorphic, E reference, Direction direction) throws ResourceRegistryException {
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return getInstancesFromEntity(clazz, polymorphic, reference.getHeader().getUUID(), direction);
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}
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@SuppressWarnings("unchecked")
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@Override
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public <ERType extends ER, R extends Resource> List<R> getInstancesFromEntity(Class<ERType> clazz,
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Boolean polymorphic, UUID reference, Direction direction) throws ResourceRegistryException {
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String type = Utility.getType(clazz);
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String ret = getInstancesFromEntity(type, polymorphic, reference, direction);
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try {
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return (List<R>) ISMapper.unmarshalList(Resource.class, ret);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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@Override
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public String getInstancesFromEntity(String type, Boolean polymorphic, UUID reference, Direction direction)
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throws ResourceRegistryException {
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try {
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logger.info("Going to get all instances of {} from/to {}", type, reference.toString());
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StringWriter stringWriter = new StringWriter();
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.ACCESS_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.INSTANCES_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(type);
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Map<String, String> parameters = new HashMap<>();
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parameters.put(AccessPath.POLYMORPHIC_PARAM, polymorphic.toString());
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parameters.put(AccessPath.REFERENCE, reference.toString());
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parameters.put(AccessPath.DIRECTION, direction.toString());
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HTTPCall httpCall = getHTTPCall();
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String ret = httpCall.call(String.class, stringWriter.toString(), HTTPMETHOD.GET, parameters);
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logger.debug("Got instances of {} from/to {} are {}", type, reference.toString(), ret);
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return ret;
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} catch (ResourceRegistryException e) {
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// logger.trace("Error while getting instances of {} from/to {}", relationType,
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// e);
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throw e;
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} catch (Exception e) {
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// logger.trace("Error while getting instances of {} from/to {}", relationType,
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// e);
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throw new RuntimeException(e);
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}
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}
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@SuppressWarnings("unchecked")
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@Override
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public <R extends Resource, F extends Facet, C extends ConsistsOf<?, ?>> List<R> getFilteredResources(
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Class<R> resourceClass, Class<C> consistsOfClass, Class<F> facetClass, boolean polymorphic,
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Map<String, Object> map) throws ResourceRegistryException {
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String resourceType = Utility.getType(resourceClass);
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String consistsOfType = Utility.getType(consistsOfClass);
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String facetType = Utility.getType(facetClass);
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String ret = getFilteredResources(resourceType, consistsOfType, facetType, polymorphic, map);
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try {
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return (List<R>) ISMapper.unmarshalList(Resource.class, ret);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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@Override
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public String getFilteredResources(String resourceType, String consistsOfType, String facetType,
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boolean polymorphic, Map<String, Object> map) throws ResourceRegistryException {
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try {
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logger.info("Going to get Filtered Resources ({}) linked by a ConsistsOf Relation ({}) to a Facet ({})"
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+ " having {}", resourceType, consistsOfType, facetType, map);
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StringWriter stringWriter = new StringWriter();
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.ACCESS_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.RESOURCE_INSTANCES_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(resourceType);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(consistsOfType);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(facetType);
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stringWriter.append(PATH_SEPARATOR);
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Map<String, Object> parameters = new HashMap<>(map);
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parameters.put(AccessPath.POLYMORPHIC_PARAM, polymorphic);
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HTTPCall httpCall = getHTTPCall();
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String json = httpCall.call(String.class, stringWriter.toString(), HTTPMETHOD.GET, parameters);
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logger.info("Filtered Resources ({}) linked by a ConsistsOf Relation ({}) to a Facet ({})"
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+ " having {} are : {}", resourceType, consistsOfType, facetType, map, json);
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return json;
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} catch (ResourceRegistryException e) {
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throw e;
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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@Override
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public String query(String query, int limit, String fetchPlan)
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throws InvalidQueryException, ResourceRegistryException {
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try {
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logger.info("Going to query. {}", query);
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StringWriter stringWriter = new StringWriter();
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.ACCESS_PATH_PART);
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Map<String, String> parameters = new HashMap<>();
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parameters.put(AccessPath.QUERY_PARAM, query);
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if (limit <= 0) {
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limit = AccessPath.UNBOUNDED;
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}
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parameters.put(AccessPath.LIMIT_PARAM, Integer.toString(limit));
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if (fetchPlan != null) {
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parameters.put(AccessPath.FETCH_PLAN_PARAM, fetchPlan);
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}
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HTTPCall httpCall = getHTTPCall();
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String ret = httpCall.call(String.class, stringWriter.toString(), HTTPMETHOD.GET, parameters);
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logger.debug("Query result is {}", ret);
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return ret;
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} catch (ResourceRegistryException e) {
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// logger.trace("Error while querying", e);
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throw e;
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} catch (Exception e) {
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// logger.trace("Error while querying", e);
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throw new RuntimeException(e);
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}
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}
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@Override
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public Context getContext(UUID uuid) throws ContextNotFoundException, ResourceRegistryException {
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try {
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logger.info("Going to get {} with UUID {}", Context.NAME, uuid.toString());
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StringWriter stringWriter = new StringWriter();
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.ACCESS_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.CONTEXT_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(uuid.toString());
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HTTPCall httpCall = getHTTPCall();
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Context context = httpCall.call(Context.class, stringWriter.toString(), HTTPMETHOD.GET);
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logger.debug("Got Context is {}", ISMapper.marshal(context));
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return context;
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} catch (ResourceRegistryException e) {
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// logger.trace("Error while getting {} schema for {}", polymorphic ?
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// AccessPath.POLYMORPHIC_PARAM + " " : "",
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// type, e);
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throw e;
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} catch (Exception e) {
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// logger.trace("Error while getting {}schema for {}", polymorphic ?
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// AccessPath.POLYMORPHIC_PARAM + " " : "",
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// type, e);
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throw new RuntimeException(e);
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}
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}
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@Override
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public <ISM extends ISManageable> List<TypeDefinition> getSchema(Class<ISM> clazz, Boolean polymorphic)
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throws SchemaNotFoundException, ResourceRegistryException {
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String type = Utility.getType(clazz);
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try {
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logger.info("Going to get {} schema", type);
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StringWriter stringWriter = new StringWriter();
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.ACCESS_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(AccessPath.SCHEMA_PATH_PART);
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stringWriter.append(PATH_SEPARATOR);
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stringWriter.append(type);
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Map<String, String> parameters = new HashMap<>();
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parameters.put(AccessPath.POLYMORPHIC_PARAM, polymorphic.toString());
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HTTPCall httpCall = getHTTPCall();
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String json = httpCall.call(String.class, stringWriter.toString(), HTTPMETHOD.GET, parameters);
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logger.debug("Got schema for {} is {}", type, json);
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return TypeBinder.deserializeTypeDefinitions(json);
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} catch (ResourceRegistryException e) {
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// logger.trace("Error while getting {} schema for {}", polymorphic ?
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// AccessPath.POLYMORPHIC_PARAM + " " : "",
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// type, e);
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throw e;
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} catch (Exception e) {
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// logger.trace("Error while getting {}schema for {}", polymorphic ?
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// AccessPath.POLYMORPHIC_PARAM + " " : "",
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// type, e);
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throw new RuntimeException(e);
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}
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}
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}
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