Example usage for org.apache.commons.lang ArrayUtils EMPTY_OBJECT

Introduction

In this page you can find the example usage for org.apache.commons.lang ArrayUtils EMPTY_OBJECT_ARRAY.

Prototype

Object[] EMPTY_OBJECT_ARRAY

To view the source code for org.apache.commons.lang ArrayUtils EMPTY_OBJECT_ARRAY.

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Document

An empty immutable Object array.

Usage

From source file:org.talend.repository.ui.wizards.exportjob.ExportTreeViewer.java

/**
 * DOC nrousseau Comment method "dispose".
 *///from   w w  w . ja  va 2s  . c  om
public void dispose() {
    getExportItemsTreeViewer().setCheckedElements(ArrayUtils.EMPTY_OBJECT_ARRAY);
    jobScriptExportWizardPage = null;
    repositoryNodes.clear();
    repositoryNodes = null;
    filteredCheckboxTree = null;

    realRepView = null;
}

From source file:reconf.client.constructors.CollectionConstructor.java

public Object construct(MethodData data) throws Throwable {

    if (data.hasAdapter()) {
        return data.getAdapter().adapt(data.getValue());
    }// w w  w  .  j  av  a 2 s .  c  om

    Class<?> returnClass = null;
    Type innerClass = null;

    if (data.getReturnType() instanceof ParameterizedType) {
        ParameterizedType parameterized = (ParameterizedType) data.getReturnType();
        returnClass = (Class<?>) parameterized.getRawType();

        if (parameterized.getActualTypeArguments()[0] instanceof ParameterizedType) {
            innerClass = parameterized.getActualTypeArguments()[0];

        } else if (parameterized.getActualTypeArguments()[0] instanceof Class<?>) {
            innerClass = parameterized.getActualTypeArguments()[0];
        }
    } else if (data.getReturnType() instanceof Class) {
        returnClass = (Class<?>) data.getReturnType();

        if (returnClass.getGenericSuperclass() != null
                && returnClass.getGenericSuperclass() instanceof ParameterizedType) {
            ParameterizedType parameterized = (ParameterizedType) returnClass.getGenericSuperclass();
            if (parameterized.getActualTypeArguments().length != 1) {
                throw new IllegalArgumentException(
                        msg.format("error.cant.build.type", data.getReturnType(), data.getMethod()));
            }
            if (parameterized.getActualTypeArguments()[0] instanceof TypeVariable) {
                throw new IllegalArgumentException(
                        msg.format("error.cant.build.type", data.getReturnType(), data.getMethod()));
            } else {
                innerClass = parameterized.getActualTypeArguments()[0];
            }

        } else {
            innerClass = Object.class;
        }

    } else {
        throw new IllegalArgumentException(msg.format("error.return", data.getMethod()));
    }

    if (returnClass.isInterface()) {
        returnClass = getDefaultImplementation(data, returnClass);
    }

    Constructor<?> constructor = returnClass.getConstructor(ArrayUtils.EMPTY_CLASS_ARRAY);
    Collection<Object> collectionInstance = (Collection<Object>) constructor
            .newInstance(ArrayUtils.EMPTY_OBJECT_ARRAY);

    if (null == data.getValue()) {
        return collectionInstance;
    }

    for (String s : new StringParser(data).getTokens()) {
        Object o = ObjectConstructorFactory.get(innerClass)
                .construct(new MethodData(data.getMethod(), innerClass, s));
        if (o != null) {
            collectionInstance.add(o);
        }
    }

    return collectionInstance;
}

From source file:reconf.client.constructors.MapConstructor.java

public Object construct(MethodData data) throws Throwable {

    if (data.hasAdapter()) {
        return data.getAdapter().adapt(data.getValue());
    }// w w  w. ja v a2s .co  m

    Class<?> returnClass = null;
    Type keyType = null;
    Type valueType = null;

    if (data.getReturnType() instanceof ParameterizedType) {
        ParameterizedType parameterized = (ParameterizedType) data.getReturnType();
        returnClass = (Class<?>) parameterized.getRawType();

        if (parameterized.getActualTypeArguments().length == 1) {
            Type first = parameterized.getActualTypeArguments()[0];
            if (returnClass.getGenericSuperclass() != null
                    && returnClass.getGenericSuperclass() instanceof ParameterizedType) {
                parameterized = (ParameterizedType) returnClass.getGenericSuperclass();
                if (parameterized.getActualTypeArguments().length != 2) {
                    throw new IllegalArgumentException(
                            msg.format("error.cant.build.type", data.getReturnType(), data.getMethod()));
                }
                if (parameterized.getActualTypeArguments()[0] instanceof TypeVariable) {
                    keyType = first;
                    valueType = parameterized.getActualTypeArguments()[1];

                } else if (parameterized.getActualTypeArguments()[1] instanceof TypeVariable) {
                    valueType = first;
                    keyType = parameterized.getActualTypeArguments()[0];

                } else {
                    throw new IllegalArgumentException(
                            msg.format("error.cant.build.type", data.getReturnType(), data.getMethod()));
                }
            }

        } else {
            keyType = parameterized.getActualTypeArguments()[0];
            valueType = parameterized.getActualTypeArguments()[1];
        }

    } else if (data.getReturnType() instanceof Class) {
        returnClass = (Class<?>) data.getReturnType();

        if (returnClass.getGenericSuperclass() != null
                && returnClass.getGenericSuperclass() instanceof ParameterizedType) {
            ParameterizedType parameterized = (ParameterizedType) returnClass.getGenericSuperclass();
            if (parameterized.getActualTypeArguments().length != 2) {
                throw new IllegalArgumentException(
                        msg.format("error.cant.build.type", data.getReturnType(), data.getMethod()));
            }
            keyType = parameterized.getActualTypeArguments()[0];
            valueType = parameterized.getActualTypeArguments()[1];

        } else {
            keyType = Object.class;
            valueType = Object.class;
        }

    } else {
        throw new IllegalArgumentException(msg.format("error.return", data.getMethod()));
    }

    if (returnClass.isInterface()) {
        returnClass = getDefaultImplementation(data, returnClass);
    }

    Constructor<?> constructor = returnClass.getConstructor(ArrayUtils.EMPTY_CLASS_ARRAY);
    Map<Object, Object> mapInstance = (Map<Object, Object>) constructor
            .newInstance(ArrayUtils.EMPTY_OBJECT_ARRAY);

    if (null == data.getValue() || StringUtils.isEmpty(data.getValue())) {
        return mapInstance;
    }

    if ((!(keyType instanceof Class))
            || (!StringUtils.startsWith(data.getValue(), "[") || !StringUtils.endsWith(data.getValue(), "]"))) {
        throw new IllegalArgumentException(msg.format("error.build", data.getValue(), data.getMethod()));
    }

    StringParser parser = new StringParser(data);
    for (Entry<String, String> each : parser.getTokensAsMap().entrySet()) {
        Object value = ObjectConstructorFactory.get(valueType)
                .construct(new MethodData(data.getMethod(), valueType, each.getValue()));
        mapInstance.put(ObjectConstructorFactory.get(keyType)
                .construct(new MethodData(data.getMethod(), keyType, each.getKey())), value);
    }

    return mapInstance;
}

From source file:reconf.client.proxy.MethodConfiguration.java

private ConfigurationAdapter getRemoteAdapter() {
    if (null == remoteItem || remoteItem.getAdapter() == null) {
        return null;
    }/*from  w w w.ja va 2  s .  com*/
    try {
        Constructor<? extends ConfigurationAdapter> constructor = remoteItem.getAdapter()
                .getConstructor(ArrayUtils.EMPTY_CLASS_ARRAY);
        return constructor.newInstance(ArrayUtils.EMPTY_OBJECT_ARRAY);
    } catch (Throwable t) {
        throw new IllegalArgumentException(msg.get("error.adapter"), t);
    }
}

Example usage for org.apache.commons.lang ArrayUtils EMPTY_OBJECT_ARRAY

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