ActiveMQ example source code file (CSourcesGenerator.java)

This example ActiveMQ source code file (CSourcesGenerator.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - ActiveMQ tags/keywords

apr_egeneral, apr_success, io, iterator, iterator, jannotation, jannotationvalue, jclass, jclass, jproperty, object, string, string, success_check, success_check, util

The ActiveMQ CSourcesGenerator.java source code

/**
 * 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.activemq.openwire.tool;

import java.io.File;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.codehaus.jam.JAnnotation;
import org.codehaus.jam.JAnnotationValue;
import org.codehaus.jam.JClass;
import org.codehaus.jam.JProperty;

/**
 * 
 */
public class CSourcesGenerator extends CHeadersGenerator {

    public Object run() {
        filePostFix = ".c";
        if (destFile == null) {
            destFile = new File(targetDir + "/ow_commands_v" + getOpenwireVersion() + ".c");
        }
        return super.run();
    }

    protected List sort(List source) {
        return source;
    }

    protected void generateSetup(PrintWriter out) {
        generateLicence(out);
        out.println("");
        out.println("/*****************************************************************************************");
        out.println(" *  ");
        out.println(" * NOTE!: This file is auto generated - do not modify!");
        out.println(" *        if you need to make a change, please see the modify the groovy scripts in the");
        out.println(" *        under src/gram/script and then use maven openwire:generate to regenerate ");
        out.println(" *        this file.");
        out.println(" *  ");
        out.println(" *****************************************************************************************/");
        out.println("");
        out.println("");
        out.println("#include \"ow_commands_v" + openwireVersion + ".h\"");
        out.println("");
        out.println("#define SUCCESS_CHECK( f ) { apr_status_t rc=f; if(rc!=APR_SUCCESS) return rc; }");
        out.println("");
    }

    protected void generateFile(PrintWriter out) throws Exception {

        ArrayList<JProperty> properties = new ArrayList();
        jclass.getDeclaredProperties();
        for (int i = 0; i < jclass.getDeclaredProperties().length; i++) {
            JProperty p = jclass.getDeclaredProperties()[i];
            if (isValidProperty(p)) {
                properties.add(p);
            }
        }

        String name = jclass.getSimpleName();
        String type = ("ow_" + name).toUpperCase() + "_TYPE";
        String baseName = "DataStructure";
        JClass superclass = jclass.getSuperclass();
        while (superclass.getSuperclass() != null) {
            if (sortedClasses.contains(superclass)) {
                baseName = superclass.getSimpleName();
                break;
            } else {
                superclass = superclass.getSuperclass();
            }
        }

        out.println("ow_boolean ow_is_a_" + name + "(ow_DataStructure *object) {");
        out.println("   if( object == 0 )");
        out.println("      return 0;");
        out.println("      ");
        out.println("   switch(object->structType) {");

        for (Iterator iterator = sortedClasses.iterator(); iterator.hasNext();) {
            JClass sub = (JClass)iterator.next();
            String subtype = "OW_" + sub.getSimpleName().toUpperCase() + "_TYPE";
            if (jclass.isAssignableFrom(sub) && !isAbstract(sub)) {
                out.println("");
                out.println("   case " + subtype + ":");
            }
        }
        out.println("");
        out.println("      return 1;");
        out.println("   }");
        out.println("   return 0;");
        out.println("}");

        if (!isAbstract(jclass)) {
            out.println("");
            out.println("");
            out.println("ow_" + name + " *ow_" + name + "_create(apr_pool_t *pool) ");
            out.println("{");
            out.println("   ow_" + name + " *value = apr_pcalloc(pool,sizeof(ow_" + name + "));");
            out.println("   if( value!=0 ) {");
            out.println("      ((ow_DataStructure*)value)->structType = " + type + ";");
            out.println("   }");
            out.println("   return value;");
            out.println("}");
        }

        out.println("");
        out.println("");
        out.println("apr_status_t ow_marshal1_" + name + "(ow_bit_buffer *buffer, ow_" + name + " *object)");
        out.println("{");
        out.println("   ow_marshal1_" + baseName + "(buffer, (ow_" + baseName + "*)object);");

        for (Iterator<JProperty> iter = properties.iterator(); iter.hasNext();) {
            JProperty property = iter.next();
            String propname = toPropertyCase(property.getSimpleName());
            boolean cached = isCachedProperty(property);
            JAnnotation annotation = property.getGetter().getAnnotation("openwire:property");
            JAnnotationValue size = annotation.getValue("size");

            type = property.getType().getQualifiedName();
            if (type.equals("boolean")) {
                out.println("   ow_bit_buffer_append(buffer, object->" + propname + ");");
            } else if (type.equals("byte")) {
            } else if (type.equals("char")) {
            } else if (type.equals("short")) {
            } else if (type.equals("int")) {
            } else if (type.equals("long")) {
                out.println("   ow_marshal1_long(buffer, object->" + propname + ");");
            } else if (type.equals("byte[]")) {
                if (size == null) {
                    out.println("   ow_bit_buffer_append(buffer,  object->" + propname + "!=0 );");
                }
            } else if (type.equals("org.apache.activeio.packet.ByteSequence")) {
                if (size == null) {
                    out.println("   ow_bit_buffer_append(buffer,  object->" + propname + "!=0 );");
                }
            } else if (type.equals("java.lang.String")) {
                out.println("   ow_marshal1_string(buffer, object->" + propname + ");");
            } else {
                if (property.getType().isArrayType()) {
                    if (size != null) {
                        out.println("   SUCCESS_CHECK(ow_marshal1_DataStructure_array_const_size(buffer, object->" + propname + ", " + size.asInt() + "));");
                    } else {
                        out.println("   SUCCESS_CHECK(ow_marshal1_DataStructure_array(buffer, object->" + propname + "));");
                    }
                } else if (isThrowable(property.getType())) {
                    out.println("   SUCCESS_CHECK(ow_marshal1_throwable(buffer, object->" + propname + "));");
                } else {
                    if (cached) {
                        out.println("   SUCCESS_CHECK(ow_marshal1_cached_object(buffer, (ow_DataStructure*)object->" + propname + "));");
                    } else {
                        out.println("   SUCCESS_CHECK(ow_marshal1_nested_object(buffer, (ow_DataStructure*)object->" + propname + "));");
                    }
                }
            }
            out.println("");
        }

        out.println("   ");
        out.println("   return APR_SUCCESS;");
        out.println("}");
        out.println("apr_status_t ow_marshal2_" + name + "(ow_byte_buffer *buffer, ow_bit_buffer *bitbuffer, ow_" + name + " *object)");
        out.println("{");
        out.println("   ow_marshal2_" + baseName + "(buffer, bitbuffer, (ow_" + baseName + "*)object);   ");

        for (Iterator<JProperty> iter = properties.iterator(); iter.hasNext();) {
            JProperty property = iter.next();
            JAnnotation annotation = property.getGetter().getAnnotation("openwire:property");
            JAnnotationValue size = annotation.getValue("size");
            Object propname = toPropertyCase(property.getSimpleName());
            boolean cached = isCachedProperty(property);

            type = property.getType().getQualifiedName();
            if (type.equals("boolean")) {
                out.println("   ow_bit_buffer_read(bitbuffer);");
            } else if (type.equals("byte")) {
                out.println("   SUCCESS_CHECK(ow_byte_buffer_append_" + type + "(buffer, object->" + propname + "));");
            } else if (type.equals("char")) {
                out.println("   SUCCESS_CHECK(ow_byte_buffer_append_" + type + "(buffer, object->" + propname + "));");
            } else if (type.equals("short")) {
                out.println("   SUCCESS_CHECK(ow_byte_buffer_append_" + type + "(buffer, object->" + propname + "));");
            } else if (type.equals("int")) {
                out.println("   SUCCESS_CHECK(ow_byte_buffer_append_" + type + "(buffer, object->" + propname + "));");
            } else if (type.equals("long")) {
                out.println("   SUCCESS_CHECK(ow_marshal2_long(buffer, bitbuffer, object->" + propname + "));");
            } else if (type.equals("byte[]")) {
                if (size != null) {
                    out.println("   SUCCESS_CHECK(ow_marshal2_byte_array_const_size(buffer, object->" + propname + ", " + size.asInt() + "));");
                } else {
                    out.println("   SUCCESS_CHECK(ow_marshal2_byte_array(buffer, bitbuffer, object->" + propname + "));");
                }
            } else if (type.equals("org.apache.activeio.packet.ByteSequence")) {
                if (size != null) {
                    out.println("   SUCCESS_CHECK(ow_marshal2_byte_array_const_size(buffer, object->" + propname + ", " + size.asInt() + "));");
                } else {
                    out.println("   SUCCESS_CHECK(ow_marshal2_byte_array(buffer, bitbuffer, object->" + propname + "));");
                }
            } else if (type.equals("java.lang.String")) {
                out.println("   SUCCESS_CHECK(ow_marshal2_string(buffer, bitbuffer, object->" + propname + "));");
            } else {
                if (property.getType().isArrayType()) {
                    if (size != null) {
                        out.println("   SUCCESS_CHECK(ow_marshal2_DataStructure_array_const_size(buffer, bitbuffer, object->" + propname + ", " + size.asInt() + "));");
                    } else {
                        out.println("   SUCCESS_CHECK(ow_marshal2_DataStructure_array(buffer, bitbuffer, object->" + propname + "));");
                    }
                } else if (isThrowable(property.getType())) {
                    out.println("   SUCCESS_CHECK(ow_marshal2_throwable(buffer, bitbuffer, object->" + propname + "));");
                } else {
                    if (cached) {
                        out.println("   SUCCESS_CHECK(ow_marshal2_cached_object(buffer, bitbuffer, (ow_DataStructure*)object->" + propname + "));");
                    } else {
                        out.println("   SUCCESS_CHECK(ow_marshal2_nested_object(buffer, bitbuffer, (ow_DataStructure*)object->" + propname + "));");
                    }
                }
            }
            out.println("");
        }

        out.println("   ");
        out.println("   return APR_SUCCESS;");
        out.println("}");
        out.println("");
        out.println("apr_status_t ow_unmarshal_" + name + "(ow_byte_array *buffer, ow_bit_buffer *bitbuffer, ow_" + name + " *object, apr_pool_t *pool)");
        out.println("{");
        out.println("   ow_unmarshal_" + baseName + "(buffer, bitbuffer, (ow_" + baseName + "*)object, pool);   ");

        for (Iterator<JProperty> iter = properties.iterator(); iter.hasNext();) {
            JProperty property = iter.next();
            JAnnotation annotation = property.getGetter().getAnnotation("openwire:property");
            JAnnotationValue size = annotation.getValue("size");
            String propname = toPropertyCase(property.getSimpleName());
            boolean cached = isCachedProperty(property);

            type = property.getType().getQualifiedName();

            if (type.equals("boolean")) {
                out.println("   object->" + propname + " = ow_bit_buffer_read(bitbuffer);");
            } else if (type.equals("byte")) {
                out.println("   SUCCESS_CHECK(ow_byte_array_read_" + type + "(buffer, &object->" + propname + "));");
            } else if (type.equals("char")) {
                out.println("   SUCCESS_CHECK(ow_byte_array_read_" + type + "(buffer, &object->" + propname + "));");
            } else if (type.equals("short")) {
                out.println("   SUCCESS_CHECK(ow_byte_array_read_" + type + "(buffer, &object->" + propname + "));");
            } else if (type.equals("int")) {
                out.println("   SUCCESS_CHECK(ow_byte_array_read_" + type + "(buffer, &object->" + propname + "));");
            } else if (type.equals("long")) {
                out.println("   SUCCESS_CHECK(ow_unmarshal_long(buffer, bitbuffer, &object->" + propname + ", pool));");
            } else if (type.equals("byte[]")) {
                if (size != null) {
                    out.println("   SUCCESS_CHECK(ow_unmarshal_byte_array_const_size(buffer, &object->" + propname + ", " + size.asInt() + ", pool));");
                } else {
                    out.println("   SUCCESS_CHECK(ow_unmarshal_byte_array(buffer, bitbuffer, &object->" + propname + ", pool));");
                }
            } else if (type.equals("org.apache.activeio.packet.ByteSequence")) {
                if (size != null) {
                    out.println("   SUCCESS_CHECK(ow_unmarshal_byte_array_const_size(buffer, &object->" + propname + ", " + size.asInt() + ", pool));");
                } else {
                    out.println("   SUCCESS_CHECK(ow_unmarshal_byte_array(buffer, bitbuffer, &object->" + propname + ", pool));");
                }
            } else if (type.equals("java.lang.String")) {
                out.println("   SUCCESS_CHECK(ow_unmarshal_string(buffer, bitbuffer, &object->" + propname + ", pool));");
            } else {
                if (property.getType().isArrayType()) {
                    if (size != null) {
                        out.println("   SUCCESS_CHECK(ow_unmarshal_DataStructure_array_const_size(buffer, bitbuffer, &object->" + propname + ", " + size.asInt() + ", pool));");
                    } else {
                        out.println("   SUCCESS_CHECK(ow_unmarshal_DataStructure_array(buffer, bitbuffer, &object->" + propname + ", pool));");
                    }
                } else if (isThrowable(property.getType())) {
                    out.println("   SUCCESS_CHECK(ow_unmarshal_throwable(buffer, bitbuffer, &object->" + propname + ", pool));");
                } else {
                    if (cached) {
                        out.println("   SUCCESS_CHECK(ow_unmarshal_cached_object(buffer, bitbuffer, (ow_DataStructure**)&object->" + propname + ", pool));");
                    } else {
                        out.println("   SUCCESS_CHECK(ow_unmarshal_nested_object(buffer, bitbuffer, (ow_DataStructure**)&object->" + propname + ", pool));");
                    }
                }
            }
            out.println("");
        }

        out.println("   ");
        out.println("   return APR_SUCCESS;");
        out.println("}");
    }

    protected void generateTearDown(PrintWriter out) {
        out.println("");
        out.println("ow_DataStructure *ow_create_object(ow_byte type, apr_pool_t *pool)");
        out.println("{");
        out.println("   switch( type ) {");
        for (Iterator iterator = sortedClasses.iterator(); iterator.hasNext();) {
            JClass jclass = (JClass)iterator.next();
            String name = jclass.getSimpleName();
            String type = ("ow_" + name).toUpperCase() + "_TYPE";
            if (!isAbstract(jclass)) {
                out.println("      case " + type + ": return (ow_DataStructure *)ow_" + name + "_create(pool);");
            }
        }

        out.println("");
        out.println("   }");
        out.println("   return 0;");
        out.println("}");
        out.println("");
        out.println("apr_status_t ow_marshal1_object(ow_bit_buffer *buffer, ow_DataStructure *object)");
        out.println("{");
        out.println("   switch( object->structType ) {");

        for (Iterator iterator = sortedClasses.iterator(); iterator.hasNext();) {
            JClass jclass = (JClass)iterator.next();
            String name = jclass.getSimpleName();
            String type = ("ow_" + name).toUpperCase() + "_TYPE";
            if (!isAbstract(jclass)) {
                out.println("      case " + type + ": return ow_marshal1_" + name + "(buffer, (ow_" + name + "*)object);");
            }
        }

        out.println("");
        out.println("   }");
        out.println("   return APR_EGENERAL;");
        out.println("}");
        out.println("");
        out.println("apr_status_t ow_marshal2_object(ow_byte_buffer *buffer, ow_bit_buffer *bitbuffer, ow_DataStructure *object)");
        out.println("{");
        out.println("   switch( object->structType ) {");

        for (Iterator iterator = sortedClasses.iterator(); iterator.hasNext();) {
            JClass jclass = (JClass)iterator.next();
            String name = jclass.getSimpleName();
            String type = ("ow_" + name).toUpperCase() + "_TYPE";
            if (!isAbstract(jclass)) {
                out.println("      case " + type + ": return ow_marshal2_" + name + "(buffer, bitbuffer, (ow_" + name + "*)object);");
            }
        }

        out.println("");
        out.println("   }");
        out.println("   return APR_EGENERAL;");
        out.println("}");
        out.println("");
        out.println("apr_status_t ow_unmarshal_object(ow_byte_array *buffer, ow_bit_buffer *bitbuffer, ow_DataStructure *object, apr_pool_t *pool)");
        out.println("{");
        out.println("   switch( object->structType ) {");

        for (Iterator iterator = sortedClasses.iterator(); iterator.hasNext();) {
            JClass jclass = (JClass)iterator.next();
            String name = jclass.getSimpleName();
            String type = ("ow_" + name).toUpperCase() + "_TYPE";
            if (!isAbstract(jclass)) {
                out.println("      case " + type + ": return ow_unmarshal_" + name + "(buffer, bitbuffer, (ow_" + name + "*)object, pool);");
            }
        }

        out.println("");
        out.println("   }");
        out.println("   return APR_EGENERAL;");
        out.println("}");

    }
}