diff options
Diffstat (limited to 'tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/services/ComponentDomNodeHandler.java')
| -rw-r--r-- | tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/services/ComponentDomNodeHandler.java | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/services/ComponentDomNodeHandler.java b/tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/services/ComponentDomNodeHandler.java deleted file mode 100644 index 60bc8395e1..0000000000 --- a/tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/services/ComponentDomNodeHandler.java +++ /dev/null @@ -1,360 +0,0 @@ -/* - * - * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. - * - * Licensed 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.tuscany.sca.cpp.tools.services; - -import java.io.File; -import java.io.FileNotFoundException; -import java.io.IOException; -import java.util.Iterator; -import java.util.List; -import java.util.Map; - -import org.apache.tuscany.sca.cpp.tools.common.Headers; -import org.apache.tuscany.sca.cpp.tools.common.Signature; -import org.apache.tuscany.sca.cpp.tools.common.Utils; -import org.w3c.dom.Node; - -/** - * This class will do the required processing for the <component>element of a - * sca module or fragment file. - */ -public class ComponentDomNodeHandler extends GenericDomNodeHandler { - - /** - * This method will do the "normal" processing and then trigger a call to - * processComponentNode. - * - * @param node - * the node being processed - * @param contextXPath - * the XPath to the node - * @param handlers - * the map pf element names to DomNodeHandlers - * @param parameters - * a map of XPaths to parameters values found so far - */ - - public void handleNode(Node node, String contextXPath, Map handlers, - Map parameters) { - - // Pick up attrs and the interface.cpp child elements - super.handleNode(node, contextXPath, handlers, parameters); - - try { - //OK now go and create the wrapper and proxy for the service - processComponentNode(contextXPath, parameters); - } catch (Exception e) { - e.printStackTrace(); - } - - } - - /** - * This method basically moved from the text names of things to operating on - * the actual Files. It will also verify or work out the correct class name - * for the implmentation and complain if this does match at least one - * potential service method in the class. - * - * @param contextXPath - * used to pull the correct values from the parameters map (as - * there can be multiple implementation.cpp elelements in there). - * @param parameters - * a map of XPath keys to attribute values - * @throws Exception - */ - private void processComponentNode(String contextXPath, Map parameters) - throws Exception { - - String implHeader = (String) parameters.get(contextXPath - + "/implementation.cpp/@header"); - String implClass = (String) parameters.get(contextXPath - + "/implementation.cpp/@class"); - - File moduleOrFragmentFile = (File) parameters - .get("moduleOrFragmentFile"); - File implHeaderFile = null; - if (null != moduleOrFragmentFile) { - File dir = moduleOrFragmentFile.getParentFile(); - implHeaderFile = new File(dir, implHeader); - } else { - throw new InternalError( - "Internal error: sca.module or fragment file not present in interal parameters"); - } - - try { - String resolvedImplClassName = getClassName(implHeaderFile, - implClass); - - // Check or retrieve the impl Class name. - if (null == resolvedImplClassName) { - try { - //A class attribute was set but there were no methods of - // the - // class in the header - System.out - .println("Classname given (" - + implClass - + ") does not match any header file method's classes in file: " - + implHeaderFile.getCanonicalPath()); - } catch (IOException e) { - System.out - .println("Classname given (" - + implClass - + ") does not match any header file method's classes in file: " - + implHeaderFile.getAbsolutePath()); - } - return; - } else { - File target = (File) parameters.get("targetFile"); - // go into the .componentType file and generate the cpp - processComponentTypeFile(implHeaderFile, target, - resolvedImplClassName); - - } - } catch (Exception e) { - String compName = (String) parameters - .get("/moduleFragment/component/@name"); - Utils - .screenMessage("Problem interpreting header or class attributes in " - + compName - + " component, in " - + moduleOrFragmentFile.getPath() + " file"); - System.exit(-2); - } - - } - - /** - * The purpose of this method is to move from the DOM parameters to dealing - * with the actual Files involved. It is from this method that we kick off - * the processing of the componentType file. - * - * @param header - * the implementation header - * @param target - * the directory for the output - * @param implClass - * @throws Exception - */ - private void processComponentTypeFile(File header, File target, - String implClass) throws Exception { - - // The componentType files should be in the same dir as the Impl - // header... - if (header == null || target == null) { - return; - } - - File componentTypeDirectory = header.getParentFile(); - String headerFileName = header.getName(); - String componentTypeName = headerFileName.substring(0, headerFileName - .lastIndexOf(".")); - - File componentTypeFile = new File(componentTypeDirectory, - componentTypeName + ".componentType"); - - ComponentTypeFileHandler ctParser = new ComponentTypeFileHandler(); - - // The implClass is used in the generated wrapper code so we need to - // store - // it so we can tunnel through the standard actOnFile signature. - - int namespaceEnd = -1; - if (null != implClass) { - namespaceEnd = implClass.lastIndexOf("::"); - } - - String namespace = null; - - if (-1 != namespaceEnd) { - namespace = implClass.substring(0, namespaceEnd); - ctParser.setParameter("implNamespace", namespace); - implClass = implClass.substring(namespaceEnd + 2); - } - - if (implClass != null) { - ctParser.setParameter("implClass", implClass); - } - - try { - ctParser.handleComponentTypeFile(componentTypeFile, target); - } catch (Exception e) { - Utils - .screenMessage("There has been a problem parsing the componentType file: " - + componentTypeFile.getCanonicalPath()); - Utils.screenMessage(" the reported errors is " - + e.getLocalizedMessage()); - Utils.screenMessage(" and the java exception stack is below."); - e.printStackTrace(); - throw e; - } - } - - /** - * The resolve and check the classname of the service. If we have an - * implementation class name we have to check that there is: at least one - * (non-private, non constructor or finalizer) method of that class in the - * header If there is no implementation class then we will return the class - * of the first non-private/constructor/finalizer method we find. - * - * @param header - * @param implementationCppClass - * @return - * @throws Exception - */ - private String getClassName(File header, String implementationCppClass) - throws Exception { - String methodClassName = null; - List methods = null; - - if (null == header) { - return null; - } - - Utils.postEvent(Utils.DEPLOYMENT_ARTEFACT_ENCOUNTERED, header - .getAbsolutePath()); - Utils.postEvent(Utils.EVENT_TYPE_FILE_PARSED, - "Scagen processing C++ implementation header " - + header.getAbsolutePath()); - - try { - Headers headers = new Headers(); - - headers.actOnFile(header, null, 1); - - methods = headers.getAllMethods(); - - } catch (FileNotFoundException fnfe) { - String path; - try { - path = header.getCanonicalPath(); - } catch (IOException e1) { - path = header.getPath(); - } - Utils.screenMessage("The header file: " + path - + " referenced cannot be found."); - throw fnfe; - } catch (Exception e) { - String path = header.getPath(); - Utils.screenMessage("The header file: " + path - + " referenced is not valid. Reason given is " - + e.getLocalizedMessage()); - throw e; - } - - // We need at least some methods - if (null == methods) { - return null; - } - - // We need at least one service method of to do anything - methods = trimMethodsOfPrivatesConstructorsAndDestrutors(methods); - if (null == methods || methods.size() == 0) { - return null; - } - - // If the user specifies an implementation class then we need at - // least one service method of that class - if (implementationCppClass != null) { - methods = filterMethodsToOneClass(methods, implementationCppClass); - - if (null == methods || methods.size() == 0) { - return null; - } else { - // There was at least one method of the correct type - return implementationCppClass; - } - } else { - // Implementation class is null so we return the fully qualified classname of the - // first service method - Signature s = (Signature) methods.get(0); - String className = s.getTrimClassName(); - String namespace = s.getNamespace(); - if( namespace != null && namespace.length() > 0) - { - className = namespace + "::" + className; - } - - return className; - } - } - - /** - * Filter the mthods supplied to only ones fo the supplied class. - * - * @param methods - * the list of methods - * @param implementationCppClass - * the class we wish - * @return a list of methods of the correct class - */ - private List filterMethodsToOneClass(List methods, - String implementationCppClass) { - - if (null == methods) { - return null; - } - - if (null == implementationCppClass - || implementationCppClass.length() == 0) { - return null; - } - - for (Iterator iter = methods.listIterator(); iter.hasNext();) { - Signature method = (Signature) iter.next(); - - String className = method.getTrimClassName(); - String namespace = method.getNamespace(); - - if (namespace != null && namespace.length() > 0) { - className = namespace + "::" + className; - } - - if (!implementationCppClass.equals(className)) { - iter.remove(); - } - } - - return methods; - - } - - /** - * This method removes contructor and destructor methods from the list. - * - * @param methods - * the list of methods - * @return - */ - private List trimMethodsOfPrivatesConstructorsAndDestrutors(List methods) { - - if (null == methods) { - return null; - } - - for (Iterator iter = methods.listIterator(); iter.hasNext();) { - Signature method = (Signature) iter.next(); - - if (method.isConstructor() || method.isDestructor()) { - iter.remove(); - } - } - - return methods; - } - -}
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