Example usage for java.lang Object equals

Introduction

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

Prototype

public boolean equals(Object obj)

Source Link

Document

Indicates whether some other object is "equal to" this one.

Usage

From source file:com.segment.analytics.internal.Utils.java

/**
 * Wraps the given object if necessary. {@link JSONObject#wrap(Object)} is only available on API
 * 19+, so we've copied the implementation. Deviates from the original implementation in
 * that it always returns {@link JSONObject#NULL} instead of {@code null} in case of a failure,
 * and returns the {@link Object#toString} of any object that is of a custom (non-primitive or
 * non-collection/map) type.//from   w w  w .ja  va 2  s  .com
 *
 * <p>If the object is null or , returns {@link JSONObject#NULL}.
 * If the object is a {@link JSONArray} or {@link JSONObject}, no wrapping is necessary.
 * If the object is {@link JSONObject#NULL}, no wrapping is necessary.
 * If the object is an array or {@link Collection}, returns an equivalent {@link JSONArray}.
 * If the object is a {@link Map}, returns an equivalent {@link JSONObject}.
 * If the object is a primitive wrapper type or {@link String}, returns the object.
 * Otherwise returns the result of {@link Object#toString}.
 * If wrapping fails, returns JSONObject.NULL.
 */
private static Object wrap(Object o) {
    if (o == null) {
        return JSONObject.NULL;
    }
    if (o instanceof JSONArray || o instanceof JSONObject) {
        return o;
    }
    if (o.equals(JSONObject.NULL)) {
        return o;
    }
    try {
        if (o instanceof Collection) {
            return new JSONArray((Collection) o);
        } else if (o.getClass().isArray()) {
            final int length = Array.getLength(o);
            JSONArray array = new JSONArray();
            for (int i = 0; i < length; ++i) {
                array.put(wrap(Array.get(array, i)));
            }
            return array;
        }
        if (o instanceof Map) {
            //noinspection unchecked
            return toJsonObject((Map) o);
        }
        if (o instanceof Boolean || o instanceof Byte || o instanceof Character || o instanceof Double
                || o instanceof Float || o instanceof Integer || o instanceof Long || o instanceof Short
                || o instanceof String) {
            return o;
        }
        // Deviate from original implementation and return the String representation of the object
        // regardless of package.
        return o.toString();
    } catch (Exception ignored) {
    }
    // Deviate from original and return JSONObject.NULL instead of null.
    return JSONObject.NULL;
}

From source file:com.github.hateoas.forms.spring.xhtml.XhtmlResourceMessageConverter.java

private static Object getContentAsScalarValue(Object content) {
    Object value = null;//from   w ww  .j  a v a 2 s  .c om

    if (content == null) {
        value = NULL_VALUE;
    } else if (content instanceof String || content instanceof Number || content.equals(false)
            || content.equals(true)) {
        value = content;
    }
    return value;
}

From source file:com.afeng.common.utils.reflection.MyBeanUtils.java

/**
 * MapkeyBean??BEAN/*from   ww  w. jav a 2s. c  o m*/
 * @param bean Object
 * @param properties Map
 * @throws IllegalAccessException
 * @throws java.lang.reflect.InvocationTargetException
 */
public static void copyMap2Bean(Object bean, Map properties)
        throws IllegalAccessException, InvocationTargetException {
    // Do nothing unless both arguments have been specified
    if ((bean == null) || (properties == null)) {
        return;
    }
    // Loop through the property name/value pairs to be set
    Iterator names = properties.keySet().iterator();
    while (names.hasNext()) {
        String name = (String) names.next();
        // Identify the property name and value(s) to be assigned
        if (name == null) {
            continue;
        }
        Object value = properties.get(name);
        try {
            Class clazz = PropertyUtils.getPropertyType(bean, name);
            if (null == clazz) {
                continue;
            }
            String className = clazz.getName();
            if (className.equalsIgnoreCase("java.sql.Timestamp")) {
                if (value == null || value.equals("")) {
                    continue;
                }
            }
            setProperty(bean, name, value);
        } catch (NoSuchMethodException e) {
            continue;
        }
    }
}

From source file:Main.java

/**
 * Determine if <code>obj2</code> exists in <code>obj1</code>.
 *
 * <table borer="1">//from   w  w  w  .j a  v  a 2 s.c om
 *  <tr>
 *      <td>Type Of obj1</td>
 *      <td>Comparison type</td>
 *  </tr>
 *  <tr>
 *      <td>null<td>
 *      <td>always return false</td>
 *  </tr>
 *  <tr>
 *      <td>Map</td>
 *      <td>Map containsKey(obj2)</td>
 *  </tr>
 *  <tr>
 *      <td>Collection</td>
 *      <td>Collection contains(obj2)</td>
 *  </tr>
 *  <tr>
 *      <td>Array</td>
 *      <td>there's an array element (e) where e.equals(obj2)</td>
 *  </tr>
 *  <tr>
 *      <td>Object</td>
 *      <td>obj1.equals(obj2)</td>
 *  </tr>
 * </table>
 *
 *
 * @param obj1
 * @param obj2
 * @return
 */
public static boolean contains(Object obj1, Object obj2) {
    if ((obj1 == null) || (obj2 == null)) {
        //log.debug("obj1 or obj2 are null.");
        return false;
    }

    if (obj1 instanceof Map) {
        if (((Map) obj1).containsKey(obj2)) {
            //log.debug("obj1 is a map and contains obj2");
            return true;
        }
    }
    if (obj1 instanceof Iterable) {
        Iterator iter = ((Iterable) obj1).iterator();
        while (iter.hasNext()) {
            Object value = iter.next();
            if (obj2.equals(value) || obj2.toString().equals(value)) {
                return true;
            }
        }
    } else if (obj1.getClass().isArray()) {
        for (int i = 0; i < Array.getLength(obj1); i++) {
            Object value = null;
            value = Array.get(obj1, i);

            if (obj2.equals(value)) {
                //log.debug("obj1 is an array and contains obj2");
                return true;
            }
        }
    } else if (obj1.toString().equals(obj2.toString())) {
        //log.debug("obj1 is an object and it's String representation equals obj2's String representation.");
        return true;
    } else if (obj1.equals(obj2)) {
        //log.debug("obj1 is an object and equals obj2");
        return true;
    }

    //log.debug("obj1 does not contain obj2: " + obj1 + ", " + obj2);
    return false;
}

From source file:com.afeng.common.utils.reflection.MyBeanUtils.java

/**
 * MapkeyBean??BEAN//from  w  ww. ja v  a  2 s.c o  m
 * ?
 * @param bean Object
 * @param properties Map
 * @param defaultValue String
 * @throws IllegalAccessException
 * @throws java.lang.reflect.InvocationTargetException
 */
public static void copyMap2Bean(Object bean, Map properties, String defaultValue)
        throws IllegalAccessException, InvocationTargetException {
    // Do nothing unless both arguments have been specified
    if ((bean == null) || (properties == null)) {
        return;
    }
    // Loop through the property name/value pairs to be set
    Iterator names = properties.keySet().iterator();
    while (names.hasNext()) {
        String name = (String) names.next();
        // Identify the property name and value(s) to be assigned
        if (name == null) {
            continue;
        }
        Object value = properties.get(name);
        try {
            Class clazz = PropertyUtils.getPropertyType(bean, name);
            if (null == clazz) {
                continue;
            }
            String className = clazz.getName();
            if (className.equalsIgnoreCase("java.sql.Timestamp")) {
                if (value == null || value.equals("")) {
                    continue;
                }
            }
            if (className.equalsIgnoreCase("java.lang.String")) {
                if (value == null) {
                    value = defaultValue;
                }
            }
            setProperty(bean, name, value);
        } catch (NoSuchMethodException e) {
            continue;
        }
    }
}

From source file:com.evolveum.midpoint.util.MiscUtil.java

public static boolean equals(Object a, Object b) {
    if (a == null && b == null) {
        return true;
    }/*from  w  w  w .  ja  v a 2  s .  c o m*/
    if (a == null || b == null) {
        return false;
    }
    return a.equals(b);
}

From source file:edu.umass.cs.utils.Util.java

public static Object getRandomOtherThan(Set<?> all, Object exclude) {
    for (Object obj : all)
        if (!obj.equals(exclude))
            return obj;
    return null;//w ww  .  j a v  a 2  s  . c o  m
}

From source file:com.medsphere.fileman.FMRecord.java

private static boolean valuesChanged(Object obj1, Object obj2) {
    return (obj1 == null) != (obj2 == null) || !(obj1 == null || obj1.equals(obj2));
}

From source file:com.afeng.common.utils.reflection.MyBeanUtils.java

/**
 * Map key/*from  w w  w .  jav a2  s. com*/
 * MapkeyBean??BEAN
 * @param bean Object
 * @param properties Map
 * @throws IllegalAccessException
 * @throws java.lang.reflect.InvocationTargetException
 */
public static void copyMap2Bean_Nobig(Object bean, Map properties)
        throws IllegalAccessException, InvocationTargetException {
    // Do nothing unless both arguments have been specified
    if ((bean == null) || (properties == null)) {
        return;
    }
    // Loop through the property name/value pairs to be set
    Iterator names = properties.keySet().iterator();
    while (names.hasNext()) {
        String name = (String) names.next();
        // Identify the property name and value(s) to be assigned
        if (name == null) {
            continue;
        }
        Object value = properties.get(name);
        name = name.toLowerCase();
        try {
            Class clazz = PropertyUtils.getPropertyType(bean, name);
            if (null == clazz) {
                continue;
            }
            String className = clazz.getName();
            if (className.equalsIgnoreCase("java.sql.Timestamp")) {
                if (value == null || value.equals("")) {
                    continue;
                }
            }
            setProperty(bean, name, value);
        } catch (NoSuchMethodException e) {
            continue;
        }
    }
}

From source file:com.gtx.cooliris.imagecache.ImageWorker.java

/**
 * Returns true if the current work has been canceled or if there was no work in
 * progress on this image view.//from   www.  j a  va 2 s.  com
 * Returns false if the work in progress deals with the same data. The work is not
 * stopped in that case.
 */
public static boolean cancelPotentialWork(Object data, IAsyncImageView imageView) {
    final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);

    if (bitmapWorkerTask != null) {
        final Object bitmapData = bitmapWorkerTask.data;
        if (bitmapData == null || !bitmapData.equals(data)) {
            bitmapWorkerTask.cancel(true);

            // Add by liulin
            // Cancel the HTTP connection
            //bitmapWorkerTask.cancelConnection();

            if (BuildConfig.DEBUG) {
                LogUtil.d(TAG, "cancelPotentialWork - cancelled work for " + data);
            }
        } else {
            // The same work is already in progress.
            return false;
        }
    }
    return true;
}