Example usage for com.google.gwt.core.ext.typeinfo JType getJNISignature

Introduction

In this page you can find the example usage for com.google.gwt.core.ext.typeinfo JType getJNISignature.

Prototype

String getJNISignature();

Source Link

Document

Returns the turns the <a href="http://java.sun.com/docs/books/jvms/second_edition/html/ClassFile.doc.html#14152"> field descriptor"</a> for a type as specified by the Java Virtual Machine Specification.

Usage

From source file:com.github.nmorel.gwtjackson.rebind.property.FieldWriteAccessor.java

License:Apache License

@Override
protected Accessor getAccessor(final String beanName, final boolean useMethod, final boolean useJsni,
        Object... obj) {/*from ww w .j a v a2  s. c  o  m*/
    final JType[] fieldsType;
    final JClassType enclosingType;
    if (useMethod) {
        fieldsType = method.get().getParameterTypes();
        enclosingType = method.get().getEnclosingType();
    } else {
        fieldsType = new JType[] { field.get().getType() };
        enclosingType = field.get().getEnclosingType();
    }

    String params = parametersToString(fieldsType, new Converter() {
        @Override
        public String convert(int index, JType type) {
            return "$L";
        }
    });

    if (!useJsni) {
        if (useMethod) {
            return new Accessor(CodeBlock.builder()
                    .add(beanName + "." + method.get().getName() + "(" + params + ")", obj).build());
        } else {
            return new Accessor(CodeBlock.builder()
                    .add(beanName + "." + field.get().getName() + " = " + params, obj).build());
        }
    }

    JsniCodeBlockBuilder jsniCode = JsniCodeBlockBuilder.builder();

    Converter typeToVariableName = new Converter() {
        @Override
        public String convert(int index, JType type) {
            return "value" + index;
        }
    };
    String values = parametersToString(fieldsType, typeToVariableName);

    if (useMethod) {
        String jni = parametersToString(fieldsType, null, new Converter() {
            @Override
            public String convert(int index, JType type) {
                return type.getJNISignature();
            }
        });
        jsniCode.addStatement("bean.@$L::$L($L)($L)", enclosingType.getQualifiedSourceName(),
                method.get().getName(), jni, values);
    } else {
        jsniCode.addStatement("bean.@$L::$L = $L", enclosingType.getQualifiedSourceName(),
                field.get().getName(), values);
    }

    MethodSpec.Builder additionalMethodBuilder = MethodSpec.methodBuilder("setValueWithJsni")
            .addModifiers(Modifier.PRIVATE, Modifier.NATIVE).addParameter(typeName(enclosingType), "bean")
            .addCode(jsniCode.build());
    for (int i = 0; i < fieldsType.length; i++) {
        JType fieldType = fieldsType[i];
        additionalMethodBuilder.addParameter(typeName(fieldType), typeToVariableName.convert(i, fieldType));
    }
    MethodSpec additionalMethod = additionalMethodBuilder.build();

    CodeBlock accessor = CodeBlock.builder()
            .add("$N($L, $L)", additionalMethod, beanName, CodeBlock.builder().add(params, obj).build())
            .build();

    return new Accessor(accessor, additionalMethod);
}

---

From source file:com.gwtent.gen.GenUtils.java

License:Apache License

public static Class<?> gwtTypeToJavaClass(JType type) {
    try {//from   ww  w  . j  a  va  2  s.  co  m
        return Class.forName(
                type.getJNISignature().substring(1, type.getJNISignature().length() - 1).replace('/', '.'));
    } catch (ClassNotFoundException e) {
        throw new CheckedExceptionWrapper("Cann't get class from gwt JClassType." + e.getMessage(), e);
    }
}

---

From source file:com.hiramchirino.restygwt.rebind.RestServiceClassCreator.java

License:Apache License

private JClassType getCallbackTypeGenericClass(final JClassType callbackType) throws UnableToCompleteException {
    return branch("getCallbackTypeGenericClass()", new Branch<JClassType>() {
        public JClassType execute() throws UnableToCompleteException {

            for (JMethod method : callbackType.getMethods()) {
                debug("checking method: " + method.getName());
                if (method.getName().equals("onSuccess")) {
                    JParameter[] parameters = method.getParameters();
                    debug("checking method params: " + parameters.length);
                    if (parameters.length == 2) {
                        debug("checking first param: " + parameters[0].getType());
                        if (parameters[0].getType() == METHOD_TYPE) {
                            debug("checking 2nd param: " + parameters[1].getType());
                            JType param2Type = parameters[1].getType();
                            JClassType type = param2Type.isClassOrInterface();
                            if (type == null) {
                                error("The type of the callback not supported: "
                                        + param2Type.getJNISignature());
                            }/*from ww w.ja  v  a  2s.c  o m*/
                            debug("match: " + type);
                            return type;
                        }
                    }
                }
            }
            error("The type of the callback could not be determined: "
                    + callbackType.getParameterizedQualifiedSourceName());
            return null;

        }
    });
}

---

From source file:com.vaadin.server.widgetsetutils.ConnectorBundleLoaderFactory.java

License:Apache License

private void writeJsniInvoker(TreeLogger logger, SplittingSourceWriter w, JClassType type, JMethod method)
        throws UnableToCompleteException {
    w.println("new JsniInvoker() {");
    w.indent();//from   ww w  .java2  s  . c  o m

    w.println("protected native Object jsniInvoke(Object target, %s<Object> params) /*-{ ",
            JsArrayObject.class.getName());
    w.indent();

    JType returnType = method.getReturnType();
    boolean hasReturnType = !"void".equals(returnType.getQualifiedSourceName());

    // Note that void is also a primitive type
    boolean hasPrimitiveReturnType = hasReturnType && returnType.isPrimitive() != null;

    if (hasReturnType) {
        w.print("return ");

        if (hasPrimitiveReturnType) {
            // Integer.valueOf(expression);
            w.print("@%s::valueOf(%s)(", returnType.isPrimitive().getQualifiedBoxedSourceName(),
                    returnType.getJNISignature());

            // Implementation tested briefly, but I don't dare leave it
            // enabled since we are not using it in the framework and we
            // have not tests for it.
            logger.log(Type.ERROR,
                    "JSNI invocation is not yet supported for methods with "
                            + "primitive return types. Change your method "
                            + "to public to be able to use conventional" + " Java invoking instead.");
            throw new UnableToCompleteException();
        }
    }

    JType[] parameterTypes = method.getParameterTypes();

    w.print("target.@%s::" + method.getName() + "(*)(", method.getEnclosingType().getQualifiedSourceName());
    for (int i = 0; i < parameterTypes.length; i++) {
        if (i != 0) {
            w.print(", ");
        }

        w.print("params[" + i + "]");

        JPrimitiveType primitive = parameterTypes[i].isPrimitive();
        if (primitive != null) {
            // param.intValue();
            w.print(".@%s::%sValue()()", primitive.getQualifiedBoxedSourceName(),
                    primitive.getQualifiedSourceName());
        }
    }

    if (hasPrimitiveReturnType) {
        assert hasReturnType;
        w.print(")");
    }

    w.println(");");

    if (!hasReturnType) {
        w.println("return null;");
    }

    w.outdent();
    w.println("}-*/;");

    w.outdent();
    w.print("}");
}

---

From source file:org.fusesource.restygwt.rebind.RestServiceClassCreator.java

License:Apache License

private JClassType getCallbackTypeGenericClass(final JClassType callbackType) throws UnableToCompleteException {
    return branch("getCallbackTypeGenericClass()", new Branch<JClassType>() {
        public JClassType execute() throws UnableToCompleteException {

            for (JMethod method : callbackType.getOverridableMethods()) {
                debug("checking method: " + method.getName());
                if (method.getName().equals("onSuccess")) {
                    JParameter[] parameters = method.getParameters();
                    debug("checking method params: " + parameters.length);
                    if (parameters.length == 2) {
                        debug("checking first param: " + parameters[0].getType());
                        if (parameters[0].getType() == METHOD_TYPE) {
                            debug("checking 2nd param: " + parameters[1].getType());
                            JType param2Type = parameters[1].getType();
                            JClassType type = param2Type.isClassOrInterface();
                            if (type == null) {
                                error("The type of the callback not supported: "
                                        + param2Type.getJNISignature());
                            }/*from  ww  w.j  a v a 2s  .  c om*/
                            debug("match: " + type);
                            return type;
                        }
                    }
                }
            }
            error("The type of the callback could not be determined: "
                    + callbackType.getParameterizedQualifiedSourceName());
            return null;

        }
    });
}

---

From source file:org.jboss.errai.codegen.meta.impl.gwt.GWTClass.java

License:Apache License

public static Class<?> getPrimitiveOrClass(final JParameter parm) throws ClassNotFoundException {
    final JType type = parm.getType();
    final String name = type.isArray() != null ? type.getJNISignature().replace("/", ".")
            : type.getQualifiedSourceName();

    if (parm.getType().isPrimitive() != null) {
        final char sig = parm.getType().isPrimitive().getJNISignature().charAt(0);

        switch (sig) {
        case 'Z':
            return boolean.class;
        case 'B':
            return byte.class;
        case 'C':
            return char.class;
        case 'D':
            return double.class;
        case 'F':
            return float.class;
        case 'I':
            return int.class;
        case 'J':
            return long.class;
        case 'S':
            return short.class;
        case 'V':
            return void.class;
        default:/*  w w  w .j  a  v  a  2  s .c  om*/
            return null;
        }
    } else {
        return Class.forName(name, false, Thread.currentThread().getContextClassLoader());
    }
}

---

From source file:org.jboss.errai.ioc.rebind.ioc.InjectUtil.java

License:Apache License

public static Class<?> getPrimitiveOrClass(JParameter parm) throws ClassNotFoundException {
    JType type = parm.getType();
    String name = type.isArray() != null ? type.getJNISignature().replace("/", ".")
            : type.getQualifiedSourceName();

    if (parm.getType().isPrimitive() != null) {
        char sig = parm.getType().isPrimitive().getJNISignature().charAt(0);

        switch (sig) {
        case 'Z':
            return boolean.class;
        case 'B':
            return byte.class;
        case 'C':
            return char.class;
        case 'D':
            return double.class;
        case 'F':
            return float.class;
        case 'I':
            return int.class;
        case 'J':
            return long.class;
        case 'S':
            return short.class;
        case 'V':
            return void.class;
        default://ww w  .  j a  v  a2s.co  m
            return null;
        }
    } else {
        return Class.forName(name, false, Thread.currentThread().getContextClassLoader());
    }

}

---