r1849 - trunk/topia-persistence/src/main/java/org/nuiton/topia/generator - Topia-commits

20 Mar 2010

Author: tchemit
Date: 2010-03-20 18:28:21 +0100 (Sat, 20 Mar 2010)
New Revision: 1849

Log:
Evolution #408: Add a template to generate BinderHelper

Added:
   trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/BinderHelperTransformer.java

Added: trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/BinderHelperTransformer.java
===================================================================

--- trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/BinderHelperTransformer.java	                        (rev 0)
+++ trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/BinderHelperTransformer.java	2010-03-20 17:28:21 UTC (rev 1849)
@@ -0,0 +1,233 @@
+/*
+ * *##%
+ * ToPIA :: Persistence
+ * Copyright (C) 2004 - 2010 CodeLutin
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Lesser Public License for more details.
+ *
+ * You should have received a copy of the GNU General Lesser Public
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-3.0.html>.
+ * ##%*
+ */
+package org.nuiton.topia.generator;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.nuiton.eugene.GeneratorUtil;
+import org.nuiton.eugene.Template;
+import org.nuiton.eugene.java.ObjectModelTransformerToJava;
+import org.nuiton.eugene.models.object.*;
+import org.nuiton.topia.persistence.TopiaEntity;
+import org.nuiton.topia.persistence.util.TopiaEntityBinder;
+import org.nuiton.topia.persistence.util.TopiaEntityHelper;
+import org.nuiton.util.beans.BinderBuilder;
+import org.nuiton.util.beans.BinderProvider;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+
+/*{generator option: parentheses = false}*/
+
+/*{generator option: writeString = +}*/
+
+/**
+ * A template to generate a helper for {@link TopiaEntityBinder}.
+ * 
+ * @author tchemit <chemit@codelutin.com>
+ * @plexus.component role="org.nuiton.eugene.Template" role-hint="org.nuiton.topia.generator.BinderHelperTransformer"
+ * @since 2.3.1
+ */
+public class BinderHelperTransformer extends ObjectModelTransformerToJava {
+
+    private static final Log log =
+            LogFactory.getLog(BinderHelperTransformer.class);
+
+    @Override
+    public void transformFromModel(ObjectModel model) {
+        ObjectModelClass resultClass;
+        String packageName = getOutputProperties().getProperty(Template.PROP_DEFAULT_PACKAGE);
+        String modelName = model.getName();
+        String binderHelperClazzName = modelName + "BinderHelper";
+        String daoHelperClazzName = modelName + "DAOHelper";
+
+        resultClass = createClass(binderHelperClazzName, packageName);
+
+        setSuperClass(resultClass, BinderProvider.class);
+
+        List<ObjectModelClass> classes = TopiaGeneratorUtil.getEntityClasses(model, true);
+
+        addImport(resultClass, TopiaEntityBinder.class);
+        addImport(resultClass, TopiaEntityHelper.class);
+        addImport(resultClass, TopiaEntity.class);
+        addImport(resultClass, BinderBuilder.class);
+
+        ObjectModelOperation op;
+
+        op = addOperation(resultClass,
+                          "getTopiaBinder",
+                          "<E extends TopiaEntity> TopiaEntityBinder<E>",
+                          ObjectModelModifier.PUBLIC,
+                          ObjectModelModifier.STATIC);
+        addParameter(op, "Class<E>", "entityClass");
+        addParameter(op, "String", "contextName");
+        setOperationBody(op, ""
+/*{
+        return (TopiaEntityBinder<E>) getBinder(entityClass, contextName);
+    }*/
+        );
+
+        op = addOperation(resultClass,
+                          "getSimpleTopiaBinder",
+                          "<E extends TopiaEntity> TopiaEntityBinder<E>",
+                          ObjectModelModifier.PUBLIC,
+                          ObjectModelModifier.STATIC);
+        addParameter(op, "Class<E>", "entityClass");
+        setOperationBody(op, ""
+/*{
+        return getTopiaBinder(entityClass, "<%=modelName%>");
+    }*/
+        );
+
+        op = addOperation(resultClass,
+                          "registerTopiaBinder",
+                          "void",
+                          ObjectModelModifier.PUBLIC,
+                          ObjectModelModifier.STATIC);
+        addParameter(op, "BinderBuilder", "builder");
+        addParameter(op, "String", "contextName");
+        setOperationBody(op, ""
+/*{
+       BinderProvider.registerBinder(builder, TopiaEntityBinder.class, contextName);
+    }*/
+        );
+
+        op = addOperation(resultClass,
+                          "copy",
+                          "<E extends TopiaEntity> void",
+                          ObjectModelModifier.PUBLIC,
+                          ObjectModelModifier.STATIC);
+        addParameter(op, "String", "contextName");
+        addParameter(op, "E", "source");
+        addParameter(op, "E", "target");
+        addParameter(op, "boolean", "tech");
+        setOperationBody(op, ""
+/*{
+        Class<E> entityClass = (Class<E>) TopiaEntityHelper.getContractClass(<%=daoHelperClazzName%>.getContracts(), target.getClass());
+        TopiaEntityBinder<E> binder = getTopiaBinder(entityClass, contextName);
+        if (binder == null) {
+            throw new NullPointerException("could not find a simple topia binder of type : " + target.getClass());
+        }
+        binder.load(source, target, tech);
+    }*/
+        );
+
+        op = addOperation(resultClass,
+                          "simpleCopy",
+                          "<E extends TopiaEntity> void",
+                          ObjectModelModifier.PUBLIC,
+                          ObjectModelModifier.STATIC);
+        addParameter(op, "E", "source");
+        addParameter(op, "E", "target");
+        addParameter(op, "boolean", "tech");
+        setOperationBody(op, ""
+/*{
+        Class<E> entityClass = (Class<E>) TopiaEntityHelper.getContractClass(<%=daoHelperClazzName%>.getContracts(), target.getClass());
+        TopiaEntityBinder<E> binder = getSimpleTopiaBinder(entityClass);
+        if (binder == null) {
+            throw new NullPointerException("could not find a simple topia binder of type : " + target.getClass());
+        }
+        binder.load(source, target, tech);
+    }*/
+        );
+
+        StringBuilder initCode = new StringBuilder();
+
+        initCode.append(""
+/*{
+         BinderBuilder builder = new BinderBuilder();
+}*/
+        );
+        for (ObjectModelClass clazz : classes) {
+
+            generateBinder(modelName, clazz, resultClass, initCode);
+
+        }
+
+        op = addOperation(resultClass, "initBinders", "void", ObjectModelModifier.PROTECTED, ObjectModelModifier.STATIC);
+        setOperationBody(op, initCode.toString());
+
+        op = addOperation(resultClass, null, (String) null, ObjectModelModifier.STATIC);
+        setOperationBody(op, ""
+ /*{
+    initBinders();
+}*/
+        );
+    }
+
+    protected void generateBinder(String modelName, ObjectModelClass clazz, ObjectModelClass resultClass, StringBuilder initCode) {
+
+        List<ObjectModelAttribute> list = new ArrayList<ObjectModelAttribute>();
+        for (ObjectModelAttribute attr : clazz.getAttributes()) {
+            if (!attr.isNavigable()) {
+                continue;
+            }
+
+            if (GeneratorUtil.isNMultiplicity(attr)) {
+                // not dealing with association
+                continue;
+            }
+
+            list.add(attr);
+        }
+
+        String clazzName = clazz.getName();
+
+        if (list.isEmpty()) {
+            // no attribute, do nothing
+            if (log.isDebugEnabled()) {
+                log.debug("no attribute to add in a binder for " + clazzName +
+                          ", will not generate it.");
+            }
+            return;
+        }
+
+
+        if (log.isDebugEnabled()) {
+            log.debug("generate simple binder for " + clazzName);
+        }
+        addImport(resultClass, clazz);
+        initCode.append(""
+/*{
+        builder.createBinderModel(<%=clazzName%>.class);
+        builder.addSimpleProperties(
+}*/
+        );
+        Iterator<ObjectModelAttribute> itr = list.iterator();
+        while (itr.hasNext()) {
+            ObjectModelAttribute attr = itr.next();
+            String attrName = attr.getName();
+            boolean hasNext = itr.hasNext();
+            initCode.append(""
+/*{            <%=clazzName%>.<%=getConstantName(attrName)%><%=(hasNext?",\n":"")%>}*/
+            );
+        }
+        initCode.append(""
+/*{
+        );
+        registerTopiaBinder(builder, "<%=modelName%>");
+    }*/
+        );
+    }
+}
+


Property changes on: trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/BinderHelperTransformer.java
___________________________________________________________________
Added: svn:keywords
   + "Author Date Id Revision HeadURL

    

r1849 - trunk/topia-persistence/src/main/java/org/nuiton/topia/generator

tchemit＠users.nuiton.org

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