Example usage for java.lang ClassCastException ClassCastException

Introduction

In this page you can find the example usage for java.lang ClassCastException ClassCastException.

Prototype

public ClassCastException(String s)

Source Link

Document

Constructs a ClassCastException with the specified detail message.

Usage

From source file:com.xhsoft.framework.common.utils.ClassUtil.java

/**
 * /*from w  w w .ja v a  2s. com*/
 * @param child
 * @param parent
 * @return
 * @throws ClassNotFoundException - Class
 * @author: lizj
 */
public static Class<?> getClass(String className, String parent) throws ClassNotFoundException {
    Class<?> childClass = ClassUtil.getClass(className);

    Class<?> parentClass = null;

    if (parent == null) {
        parentClass = Object.class;
    } else {
        parentClass = ClassUtil.getClass(parent);
    }

    if (!parentClass.isAssignableFrom(childClass)) {
        throw new ClassCastException(className + " class must be implement the " + parent + " interface.");
    }

    return childClass;
}

From source file:ch.berta.fabio.popularmovies.presentation.ui.fragments.MovieDetailsBaseFragment.java

@Override
public void onAttach(Context context) {
    super.onAttach(context);

    try {/*from   w w w  .j  av  a 2 s  .  c  o  m*/
        mActivity = (FragmentInteractionListener) context;
    } catch (ClassCastException e) {
        throw new ClassCastException(context.toString() + " must implement FragmentInteractionListener");
    }
}

From source file:com.ericbarnhill.arrayMath.MathArrayDouble2D.java

protected MathArrayDouble2D addC(Complex g) {
    throw new ClassCastException("Cannot add Complex number to double array");
}

From source file:com.ericbarnhill.arrayMath.MathArrayDouble3D.java

protected MathArrayDouble3D addC(Complex g) {
    throw new ClassCastException("Cannot add Complex number to double array");
}

From source file:net.fizzl.redditengine.impl.MultiApi.java

/**
 * Return a list of multis belonging to the current user
 * //from  w  ww  .  ja  v  a 2 s  . com
 * @return {@link MultiData}[]
 * @throws RedditEngineException
 */
public LabeledMulti[] getMyMultis() throws RedditEngineException {
    String url = String.format("%s%s", UrlUtils.BASE_URL, "/api/multi/mine");
    LabeledMulti[] retval = null;
    try {
        SimpleHttpClient client = SimpleHttpClient.getInstance();
        // Reponse may be an array of LabeledMultis or one MultiData in case of an error (403)
        // MultiData example: {"explanation": "please login to do that", "reason": "USER_REQUIRED"}         
        InputStream in = client.get(url, null); // any error status will throw an exception
        Object response = GsonTemplate.fromInputStream(in, Object.class);
        in.close();
        Gson gson = new Gson();
        String json = gson.toJson(response);
        if (response instanceof List) {
            // reinterpret as LabeledMulti[]
            retval = gson.fromJson(json, LabeledMulti[].class);
        } else if (response instanceof Map) {
            // reinterpret as MultiData
            MultiData multiData = gson.fromJson(json, MultiData.class);
            // TODO how to return this?
        } else {
            throw new ClassCastException("don't know how to interpret response " + json);
        }
    } catch (ClientProtocolException e) {
        throw new RedditEngineException(e);
    } catch (IOException e) {
        throw new RedditEngineException(e);
    } catch (UnexpectedHttpResponseException e) {
        // TODO got a 403 but because of exception we don't know the exact error message
        throw new RedditEngineException(e);
    }

    return retval;
}

From source file:com.ae.apps.messagecounter.fragments.MessageChartFragment.java

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);
    try {// w w  w  .jav  a 2s . co  m
        mReader = (MessageDataReader) activity;
    } catch (ClassCastException e) {
        throw new ClassCastException(activity.toString() + " must implement OnCheckStatusListener");
    }
}

From source file:com.androzic.waypoint.WaypointDetails.java

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);

    // This makes sure that the container activity has implemented
    // the callback interface. If not, it throws an exception
    try {//from   ww w .j  a v a  2 s.co m
        fragmentHolderCallback = (FragmentHolder) activity;
    } catch (ClassCastException e) {
        throw new ClassCastException(activity.toString() + " must implement FragmentHolder");
    }
    try {
        waypointActionsCallback = (OnWaypointActionListener) activity;
    } catch (ClassCastException e) {
        throw new ClassCastException(activity.toString() + " must implement OnWaypointActionListener");
    }
}

From source file:edu.wisc.commons.httpclient.HttpParamsBean.java

private <T> T getTypedParameter(String name, T defaultValue, Class<T> type, Function<Object, T> parser) {
    final Object value = delegate.getParameter(name);

    //If null return default value
    if (value == null) {
        return defaultValue;
    }//  w  w w.  j  a v a  2s.com

    //If already the right type just cast and return
    final Class<? extends Object> valueType = value.getClass();
    if (type.isAssignableFrom(valueType)) {
        return type.cast(value);
    }

    //Try parsing the value to the desired type
    try {
        return parser.apply(value);
    } catch (Exception e) {
        final ClassCastException cce = new ClassCastException(
                "Cannot convert '" + value + "' of type " + valueType.getName() + " to " + type.getName());
        cce.initCause(e);
        throw cce;
    }
}

From source file:ch.ccapps.android.zeneggen.fragment.TabSectionListFragment.java

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);
    Log.i("TabSectionListFragment", "- OnAttach -");
    try {// ww w.  jav  a 2s .  c o  m
        tabSecInterface = ((CustomSectionListInterface<T>) activity).getTabSectionListInterface();

        Log.i("TabSectionListFragment", " item Map is:" + itemMap);
    } catch (ClassCastException e) {
        throw new ClassCastException(activity.toString() + " You must implement CustomSectionListInterface");
    }
}

From source file:at.wada811.imageslider.ImageSliderFragment.java

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);

    if (activity instanceof ImageSliderFragmentCallbackProvider == false) {
        throw new ClassCastException(activity.getLocalClassName() + " must implements "
                + ImageSliderFragmentCallbackProvider.class.getSimpleName());
    }//from w w  w.  j  a v a2s .c o m
    ImageSliderFragmentCallbackProvider provider = (ImageSliderFragmentCallbackProvider) activity;
    mCallback = provider.getImageSliderCallback();
}