| /* |
| * 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.apache.olingo.server.core.responses; |
| |
| import java.io.InputStream; |
| import java.net.URI; |
| import java.util.Map; |
| |
| import org.apache.olingo.commons.api.data.Operation; |
| import org.apache.olingo.commons.api.edm.EdmAction; |
| import org.apache.olingo.commons.api.edm.EdmFunction; |
| import org.apache.olingo.commons.api.edm.EdmParameter; |
| import org.apache.olingo.commons.api.format.ContentType; |
| import org.apache.olingo.commons.api.http.HttpHeader; |
| import org.apache.olingo.commons.api.http.HttpStatusCode; |
| import org.apache.olingo.server.api.ODataApplicationException; |
| import org.apache.olingo.server.api.ODataLibraryException; |
| import org.apache.olingo.server.api.ODataResponse; |
| import org.apache.olingo.server.api.ServiceMetadata; |
| |
| public abstract class ServiceResponse { |
| protected ServiceMetadata metadata; |
| protected ODataResponse response; |
| protected Map<String, String> preferences; |
| private boolean closed; |
| private boolean strictApplyPreferences = true; |
| |
| public ServiceResponse(ServiceMetadata metadata, ODataResponse response, |
| Map<String, String> preferences) { |
| this.metadata = metadata; |
| this.response = response; |
| this.preferences = preferences; |
| } |
| |
| public ODataResponse getODataResponse() { |
| return this.response; |
| } |
| |
| protected boolean isClosed() { |
| return this.closed; |
| } |
| |
| protected void close() { |
| if (!this.closed) { |
| if (this.strictApplyPreferences) { |
| if (!preferences.isEmpty()) { |
| assert(this.response.getAllHeaders().get("Preference-Applied") != null); |
| } |
| } |
| this.closed = true; |
| } |
| } |
| |
| public void writeNoContent(boolean closeResponse) { |
| this.response.setStatusCode(HttpStatusCode.NO_CONTENT.getStatusCode()); |
| if (closeResponse) { |
| close(); |
| } |
| } |
| |
| public void writeNotFound(boolean closeResponse) { |
| response.setStatusCode(HttpStatusCode.NOT_FOUND.getStatusCode()); |
| if (closeResponse) { |
| close(); |
| } |
| } |
| |
| public void writeServerError(boolean closeResponse) { |
| response.setStatusCode(HttpStatusCode.INTERNAL_SERVER_ERROR.getStatusCode()); |
| if (closeResponse) { |
| close(); |
| } |
| } |
| |
| public void writeBadRequest(boolean closeResponse) { |
| response.setStatusCode(HttpStatusCode.BAD_REQUEST.getStatusCode()); |
| if (closeResponse) { |
| close(); |
| } |
| } |
| |
| public void writeOK(ContentType contentType) { |
| this.response.setStatusCode(HttpStatusCode.OK.getStatusCode()); |
| this.response.setHeader(HttpHeader.CONTENT_TYPE, contentType.toContentTypeString()); |
| } |
| |
| public void writeHeader(String key, String value) { |
| if ("Preference-Applied".equals(key)) { |
| String previous = this.response.getHeader(key); |
| if (previous != null) { |
| value = previous+";"+value; |
| } |
| this.response.setHeader(key, value); |
| } else { |
| this.response.setHeader(key, value); |
| } |
| } |
| |
| public void writeContent(InputStream content, int statusCode, boolean closeResponse) { |
| this.response.setContent(content); |
| this.response.setStatusCode(statusCode); |
| if (closeResponse) { |
| close(); |
| } |
| } |
| |
| /** |
| * When true; the "Preference-Applied" header is strictly checked. |
| * @param flag |
| */ |
| public void setStrictlyApplyPreferences(boolean flag) { |
| this.strictApplyPreferences = flag; |
| } |
| |
| public abstract void accepts(ServiceResponseVisior visitor) throws ODataLibraryException, |
| ODataApplicationException; |
| |
| protected static Operation buildOperation(EdmFunction function, String id) { |
| String fqn = function.getFullQualifiedName().getFullQualifiedNameAsString(); |
| Operation operation = new Operation(); |
| operation.setType(Operation.Type.FUNCTION); |
| operation.setTitle(fqn); |
| StringBuilder params = new StringBuilder(); |
| StringBuilder nameFQN = new StringBuilder(); |
| params.append(fqn); |
| nameFQN.append(fqn); |
| if (!function.getParameterNames().isEmpty() && function.getParameterNames().size() > 1) { |
| params.append("("); |
| nameFQN.append("("); |
| boolean first = true; |
| for (int i = 1; i < function.getParameterNames().size(); i++) { |
| String parameterName = function.getParameterNames().get(i); |
| EdmParameter p = function.getParameter(parameterName); |
| if (first) { |
| first = false; |
| } else { |
| params.append(","); |
| nameFQN.append(","); |
| } |
| params.append(p.getName()).append("=").append("@").append(p.getName()); |
| nameFQN.append(p.getName()); |
| } |
| params.append(")"); |
| nameFQN.append(")"); |
| } |
| operation.setMetadataAnchor("#"+nameFQN); |
| operation.setTarget(URI.create(id+"/"+params.toString())); |
| return operation; |
| } |
| |
| protected Operation buildOperation(EdmAction action, String id) { |
| String fqn = action.getFullQualifiedName().getFullQualifiedNameAsString(); |
| Operation operation = new Operation(); |
| operation.setMetadataAnchor("#"+fqn); |
| operation.setType(Operation.Type.ACTION); |
| operation.setTitle(fqn); |
| operation.setTarget(URI.create(id+"/"+fqn)); |
| return operation; |
| } |
| } |