Examples of org.codehaus.jam.JClass

org.codehaus.jam.JClass

Represents a Java class that may or may not be loaded in the VM. JClass is typically implemented in one of two ways: by wrapping a java.lang.Class or by parsing a source file directly with a tool such as javadoc or javelin.

If a JClass represents an inner class, its getParent() method returns the outer class. Otherwise, it returns the containing package.

Important Note: Because JAM's classloading machinery may swap instances of JClass out of memory at any time, you should never rely on instance equality (i.e., '==') when comparing two JClasses. To illustrate: it is possible (though rather unlikely) that that the following expression will evaluate to false
JMethod myJMethod = ... myJMethod.getReturnType() == myJMethod.getReturnType()
Instead, you should always use equals()
myJMethod.getReturnType().equals(myJMethod.getReturnType())
REVIEW a bunch of these methods (getMethods, getConstructors...) could throw SecurityException if the JClass is backed by java.lang.Class (see javadocs for Class). We're currently ignoring this, because it seems unlikely and it seems heavyweight. Seems ok?
@author Patrick Calahan <email: codehaus-at-bea-dot-com>

    }


    protected boolean implementsInterface(JClass type, Class interfaceClass) {
        JClass[] interfaces = type.getInterfaces();
        for (int i = 0; i < interfaces.length; i++) {
            JClass anInterface = interfaces[i];
            if (anInterface.getQualifiedName().equals(interfaceClass.getName())) {
                return true;
            }
        }
        JClass superclass = type.getSuperclass();
        if (superclass == null || superclass == type) {
            return false;
        }
        else {
            return implementsInterface(superclass, interfaceClass);

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            out.println("info." + setter + "( (" + type + ") unmarshalNestedObject(wireFormat, dataIn, bs) );");
        }
    }


    protected void generateUnmarshalBodyForArrayProperty(PrintWriter out, JProperty property, JAnnotationValue size) {
        JClass propertyType = property.getType();
        String arrayType = propertyType.getArrayComponentType().getSimpleName();
        String setter = property.getGetter().getSimpleName();
        out.println();
        if (size != null) {
            out.println("    {");
            out.println("        " + arrayType + "[] value = new " + arrayType + "[" + size.asInt() + "];");

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        int baseSize = 0;
        for (Iterator iter = properties.iterator(); iter.hasNext();) {
            JProperty property = (JProperty) iter.next();
            JAnnotation annotation = property.getAnnotation("openwire:property");
            JAnnotationValue size = annotation.getValue("size");
            JClass propertyType = property.getType();
            String type = propertyType.getSimpleName();
            String getter = "info." + property.getGetter().getSimpleName() + "()";


            out.print(indent);
            if (type.equals("boolean")) {
                out.println("bs.writeBoolean(" + getter + ");");
            }
            else if (type.equals("byte")) {
                baseSize += 1;
            }
            else if (type.equals("char")) {
                baseSize += 1;
            }
            else if (type.equals("short")) {
                baseSize += 1;
            }
            else if (type.equals("int")) {
                baseSize += 1;
            }
            else if (type.equals("long")) {
                out.println("rc += marshal1Long(wireFormat, " + getter + ", bs);");
            }
            else if (type.equals("String")) {
                out.println("rc += writeString(" + getter + ", bs);");
            }
            else if (type.equals("byte[]") || type.equals("ByteSequence")) {
                if (size == null) {
                    out.println("bs.writeBoolean(" + getter + "!=null);");
                    out.println("    rc += " + getter + "==null ? 0 : " + getter + ".Length+4;");
                }
                else {
                    baseSize += size.asInt();
                }
            }
            else if (propertyType.isArrayType()) {
                if (size != null) {
                    out.println("rc += marshalObjectArrayConstSize(wireFormat, " + getter + ", bs, " + size.asInt() + ");");
                }
                else {
                    out.println("rc += marshalObjectArray(wireFormat, " + getter + ", bs);");

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        List properties = getProperties();
        for (Iterator iter = properties.iterator(); iter.hasNext();) {
            JProperty property = (JProperty) iter.next();
            JAnnotation annotation = property.getAnnotation("openwire:property");
            JAnnotationValue size = annotation.getValue("size");
            JClass propertyType = property.getType();
            String type = propertyType.getSimpleName();
            String getter = "info." + property.getGetter().getSimpleName() + "()";


            out.print(indent);
            if (type.equals("boolean")) {
                out.println("bs.readBoolean();");
            }
            else if (type.equals("byte")) {
                out.println("DataStreamMarshaller.writeByte(" + getter + ", dataOut);");
            }
            else if (type.equals("char")) {
                out.println("DataStreamMarshaller.writeChar(" + getter + ", dataOut);");
            }
            else if (type.equals("short")) {
                out.println("DataStreamMarshaller.writeShort(" + getter + ", dataOut);");
            }
            else if (type.equals("int")) {
                out.println("DataStreamMarshaller.writeInt(" + getter + ", dataOut);");
            }
            else if (type.equals("long")) {
                out.println("marshal2Long(wireFormat, " + getter + ", dataOut, bs);");
            }
            else if (type.equals("String")) {
                out.println("writeString(" + getter + ", dataOut, bs);");
            }
            else if (type.equals("byte[]") || type.equals("ByteSequence")) {
                if (size != null) {
                    out.println("dataOut.write(" + getter + ", 0, " + size.asInt() + ");");
                }
                else {
                    out.println("if(bs.readBoolean()) {");
                    out.println("       DataStreamMarshaller.writeInt(" + getter + ".Length, dataOut);");
                    out.println("       dataOut.write(" + getter + ");");
                    out.println("    }");
                }
            }
            else if (propertyType.isArrayType()) {
                if (size != null) {
                    out.println("marshalObjectArrayConstSize(wireFormat, " + getter + ", dataOut, bs, " + size.asInt() + ");");
                }
                else {
                    out.println("marshalObjectArray(wireFormat, " + getter + ", dataOut, bs);");

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out.println("");


    List list = new ArrayList(getConcreteClasses());
    Collections.sort(list, new Comparator(){
      public int compare(Object o1, Object o2) {
        JClass c1 = (JClass) o1;
        JClass c2 = (JClass) o2;
        return c1.getSimpleName().compareTo(c2.getSimpleName());
      }});
    
    for (Iterator iter = list.iterator(); iter.hasNext();) {
      JClass jclass = (JClass) iter.next();
out.println("#include \"marshal/"+jclass.getSimpleName()+"Marshaller.hpp\"");
      }        


out.println("");
out.println("");
out.println("using namespace apache::activemq::client::marshal;");
out.println("");
out.println("");
out.println("void MarshallerFactory::configure(ProtocolFormat& format) ");
out.println("{");


    for (Iterator iter = list.iterator(); iter.hasNext();) {
      JClass jclass = (JClass) iter.next();
out.println("    format.addMarshaller(new "+jclass.getSimpleName()+"Marshaller());");
      }        


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

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            !property.getType().getSimpleName().equals("ByteSequence") )
        {
            String includeName = toCppType(property.getType());
            if( property.getType().isArrayType() )
            {
                JClass arrayType = property.getType().getArrayComponentType();
                if( arrayType.isPrimitiveType() )
                    continue ;
            }
            if( includeName.startsWith("array<") )
                includeName = includeName.substring(6, includeName.length()-1);
            else if( includeName.startsWith("p<") )

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out.println("");
out.println("");
    for (int i = 0; i < getJclass().getImportedPackages().length; i++) {
      JPackage pkg = getJclass().getImportedPackages()[i];
      for (int j = 0; j < pkg.getClasses().length; j++) {
        JClass clazz = pkg.getClasses()[j];
out.println("import " + clazz.getQualifiedName() + ";");
      }
    }


out.println("");
out.println("/**");

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out.println("");


    List list = new ArrayList(getConcreteClasses());
    Collections.sort(list, new Comparator(){
      public int compare(Object o1, Object o2) {
        JClass c1 = (JClass) o1;
        JClass c2 = (JClass) o2;
        return c1.getSimpleName().compareTo(c2.getSimpleName());
      }});
    
    for (Iterator iter = list.iterator(); iter.hasNext();) {
      JClass jclass = (JClass) iter.next();
out.println("        add(new " + jclass.getSimpleName() + "Marshaller());");
    }


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

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    return super.getClassName(jclass) + "Marshaller";
  }


  protected String getBaseClassName(JClass jclass) {
    String answer = "BaseDataStreamMarshaller";
    JClass superclass = jclass.getSuperclass();
    if (superclass != null) {
      String superName = superclass.getSimpleName();
      if (!superName.equals("Object") && !superName.equals("JNDIBaseStorable") && !superName.equals("DataStructureSupport")) {
        answer = superName + "Marshaller";
      }
    }
    return answer;

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    List properties = getProperties();
    for (Iterator iter = properties.iterator(); iter.hasNext();) {
      JProperty property = (JProperty) iter.next();
      JAnnotation annotation = property.getAnnotation("openwire:property");
      JAnnotationValue size = annotation.getValue("size");
      JClass propertyType = property.getType();
      String propertyTypeName = propertyType.getSimpleName();


      if (propertyType.isArrayType() && !propertyTypeName.equals("byte[]")) {
        generateTightUnmarshalBodyForArrayProperty(out, property, size);
      } else {
        generateTightUnmarshalBodyForProperty(out, property, size);
      }
    }

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