Example usage for java.lang.reflect Type toString

Introduction

In this page you can find the example usage for java.lang.reflect Type toString.

Prototype

public String toString() 

Source Link

Document

Returns a string representation of the object.

Usage

From source file:gov.nih.nci.cabig.caaers.tools.ObjectDump.java

public static void main(String[] args) {
    ObjectDump target = new ObjectDump();

    Class cls = null;/*  w  w  w .j  a v  a  2s .  c  o m*/
    Field[] fields;

    try {
        cls = Class.forName(target.getClass().getName());
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }

    write("Class: " + target.getClass().getName() + "\n");
    fields = cls.getFields();

    for (int i = 0; i < fields.length; i++) {
        Field field = fields[i];
        write("\tfield[" + (i + 1) + "]: " + field.getName() + "\r\n");

        Type type = field.getType();
        write(type.toString());
    }

}

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From source file:Main.java

public static void main(String... args) {
    try {/*w w  w .  j  av a  2  s .  c om*/
        Class<?> c = Class.forName(args[0]);
        out.format("Class:%n  %s%n%n", c.getCanonicalName());
        out.format("Modifiers:%n  %s%n%n", Modifier.toString(c.getModifiers()));

        out.format("Type Parameters:%n");
        TypeVariable[] tv = c.getTypeParameters();
        if (tv.length != 0) {
            out.format("  ");
            for (TypeVariable t : tv)
                out.format("%s ", t.getName());
            out.format("%n%n");
        } else {
            out.format("  -- No Type Parameters --%n%n");
        }

        out.format("Implemented Interfaces:%n");
        Type[] intfs = c.getGenericInterfaces();
        if (intfs.length != 0) {
            for (Type intf : intfs)
                out.format("  %s%n", intf.toString());
            out.format("%n");
        } else {
            out.format("  -- No Implemented Interfaces --%n%n");
        }

        out.format("Inheritance Path:%n");
        List<Class> l = new ArrayList<Class>();
        printAncestor(c, l);
        if (l.size() != 0) {
            for (Class<?> cl : l)
                out.format("  %s%n", cl.getCanonicalName());
            out.format("%n");
        } else {
            out.format("  -- No Super Classes --%n%n");
        }

        out.format("Annotations:%n");
        Annotation[] ann = c.getAnnotations();
        if (ann.length != 0) {
            for (Annotation a : ann)
                out.format("  %s%n", a.toString());
            out.format("%n");
        } else {
            out.format("  -- No Annotations --%n%n");
        }

        // production code should handle this exception more gracefully
    } catch (ClassNotFoundException x) {
        x.printStackTrace();
    }
}

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From source file:Main.java

static String typeToString(Type paramType) {
    if ((paramType instanceof Class))
        return ((Class) paramType).getName();
    return paramType.toString();
}

---

From source file:Main.java

public static String getClassName(Type type) {
    if (type == null) {
        return "";
    }//from  w w  w.  j  a v a2s.c  o m
    String className = type.toString();
    if (className.startsWith(TYPE_NAME_PREFIX)) {
        className = className.substring(TYPE_NAME_PREFIX.length());
    }
    return className;
}

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From source file:Main.java

/**
 * {@link Type#toString()} value is the fully qualified class name prefixed
 * with {@link ReflectionUtils#TYPE_NAME_PREFIX}. This method will substring it, for it to be eligible
 * for {@link Class#forName(String)}./*  w ww  .  j  a  v  a2 s .c  o  m*/
 *
 * @param type the {@code Type} value whose class name is needed.
 * @return {@code String} class name of the invoked {@code type}.
 *
 * @see {@link ReflectionUtils#getClass()}
 */
public static String getClassName(Type type) {
    if (type == null) {
        return "";
    }
    String className = type.toString();
    if (className.startsWith(TYPE_CLASS_NAME_PREFIX)) {
        className = className.substring(TYPE_CLASS_NAME_PREFIX.length());
    } else if (className.startsWith(TYPE_INTERFACE_NAME_PREFIX)) {
        className = className.substring(TYPE_INTERFACE_NAME_PREFIX.length());
    }
    return className;
}

---

From source file:Main.java

private static String getClassName(Type type) {
    if (type == null) {
        return "";
    }//from   ww w . j a v  a2  s .co m
    String clazzName = type.toString();
    if (clazzName.startsWith(TYPE_NAME_PREFIX)) {
        clazzName = clazzName.replace(TYPE_NAME_PREFIX, "");
    }
    return clazzName;
}

---

From source file:Main.java

public static Class<?>[] getGenericArgs(ParameterizedType genericType) {
    Type[] typeArr = genericType.getActualTypeArguments();
    Class<?>[] argsArr = new Class<?>[typeArr.length];
    for (int i = 0; i < typeArr.length; i++) {
        Type t = typeArr[i];
        if (t instanceof ParameterizedType) {
            // TODO full hierarchy
            t = ((ParameterizedType) t).getRawType();
        }//from   w  w  w  .  j  av a 2s .c  o  m
        String clsName = t.toString().replaceFirst("^(class|interface) ", "");
        argsArr[i] = classForName(clsName);
    }
    return argsArr;
}

---

From source file:Main.java

public static void setField(Object object, String fieldName, Object fieldValue) {
    Class<?> objectClass = object.getClass();
    if (objectClass != null) {
        try {/*www.  j ava2 s  .  c  om*/
            Field field = objectClass.getDeclaredField(fieldName);
            field.setAccessible(true);
            Type type = field.getGenericType();

            //This is bad, but dear God I can't figure out how to convert a runtime Type to its actual type through reflection. I know how in C#....
            if (type.toString().toLowerCase().contains("short")) {
                fieldValue = Short.parseShort((String) fieldValue);
            }

            else if (type.toString().toLowerCase().contains("integer")) {
                fieldValue = Integer.parseInt((String) fieldValue);
            }

            else if (type.toString().toLowerCase().contains("long")) {
                fieldValue = Long.parseLong((String) fieldValue);
            }

            else if (type.toString().toLowerCase().contains("boolean")) {
                fieldValue = "1".equals(fieldValue); //Java, you're the worst language. And SQLite isn't helping.
            }

            field.set(object, fieldValue);
        }

        catch (NoSuchFieldException e) {
            return;
        }

        catch (Exception e) {
            throw new IllegalStateException(e);
        }
    }
}

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From source file:org.nuxeo.ecm.core.io.registry.MarshallerHelper.java

/**
 * Checks the marshallers isn't null. Throw an exception if it is.
 *///from w ww.j av a2  s . co m
private static void checkMarshaller(Type type, Marshaller<?> marshaller) {
    if (marshaller == null) {
        throw new MarshallingException("No marshaller found for type " + type.toString());
    }
}

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From source file:com.github.juanmf.java2plant.Parser.java

protected static Set<String> getTypeParams(ParameterizedType f) {
    Set<String> typeVars = new HashSet<>();
    Type[] actualTypeArguments = f.getActualTypeArguments();
    for (Type t : actualTypeArguments) {
        typeVars.add(t.toString().replace("class ", ""));
    }//from  w w  w . ja  v  a 2 s . c  o m
    return typeVars;
}

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