Java IDataCursor.getValue方法代码示例

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
boolean matches(IData document, IData potential, String prefix, boolean reportFail) {
	IDataCursor pc = potential.getCursor();
	IDataCursor dc = document.getCursor();
	while (pc.next()) {
		String key = pc.getKey();
		Object docObj = IDataUtil.get(dc, key);
		Object potObj = pc.getValue();
		if (docObj instanceof IData && potObj instanceof IData) {
			if (!isIDataMatch(prefix, reportFail, key, docObj, potObj)) {
				return false;
			}
		} else if (docObj instanceof IData[]) {
			if (!isIDataArrayMatch(prefix, key, docObj, potObj)) {
				return false;
			}
		} else {
			if (!isObjectMatch(prefix, reportFail, key, docObj, potObj)) {
				return false;
			}
		}
	}
	return true;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Converts the given IData document to a Map.
 *
 * @param document              The IData document to be converted.
 * @param sorted                Whether the Map should maintain keys sorted in natural ascending order.
 * @param klass                 The class of Map values.
 * @param <V>                   The class of Map values.
 * @return                      A newly created Map which contains the top-level key value elements from the
 *                              given document.
 */
@SuppressWarnings("unchecked")
public static <V> ConcurrentMap<String, V> mapify(IData document, boolean sorted, Class<V> klass) {
    ConcurrentMap<String, V> map = create(sorted);

    if (document != null) {
        IDataCursor cursor = document.getCursor();
        try {
            while (cursor.next()) {
                String key = cursor.getKey();
                V value = (V)cursor.getValue();
                // ignore null values, as they are not supported by either ConcurrentHashMap or ConcurrentSkipListMap
                if (value != null) map.put(key, value);
            }
        } finally {
            cursor.destroy();
        }
    }

    return map;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Returns the all keys associated with the given value.
 *
 * @param cursor    An IDataCursor object.
 * @param value     The value whose first associated key is to be returned.
 * @return          All keys associated with the given value, or null if no association exists.
 */
private static String[] getKeys(IDataCursor cursor, Object value) {
    List<String> keys;

    if (cursor != null) {
        keys = new ArrayList<String>();
        while (cursor.next()) {
            String key = cursor.getKey();
            Object val = cursor.getValue();
            if ((value instanceof Object[] && val instanceof Object[] && ArrayHelper.equal((Object[])value, (Object[])val)) || ObjectHelper.equal(value, cursor.getValue())) {
                keys.add(key);
            }
        }
    } else {
        keys = Collections.emptyList();
    }

    return CollectionHelper.arrayify(keys, String.class);
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Returns all the top-level values that are instances of the given class from the given document.
 *
 * @param document   An IData document.
 * @param valueClass The class that the returned values are instances of.
 * @return           The list of top-level values that are instances of the given class from the given IData
 *                   document.
 */
@SuppressWarnings("unchecked")
public static <V> List<V> getValueList(IData document, Class<V> valueClass) {
    if (valueClass == null) throw new NullPointerException("valueClass must not be null");

    List<V> values = new ArrayList<V>(size(document));

    if (document != null) {
        IDataCursor cursor = document.getCursor();

        try {
            while (cursor.next()) {
                Object value = cursor.getValue();
                if (valueClass.isInstance(value)) {
                    values.add((V)value);
                }
            }
        } finally {
            cursor.destroy();
        }
    }

    return values;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Emits a query string given an IData containing name value pairs.
 *
 * @param input   An IData containing keys and values to serialized as a query string.
 * @param charset The character set to use when URI encoding the parameters.
 * @param encode  True if the query string parameters should be URI encoded.
 * @return A query string containing the parameters in the given IData.
 */
public static String emit(IData input, Charset charset, boolean encode) {
    if (input == null) return null;

    StringBuilder output = new StringBuilder();

    input = IDataHelper.denormalize(input);

    IDataCursor cursor = input.getCursor();
    while (cursor.next()) {
        String key = cursor.getKey();
        Object value = cursor.getValue();

        if (value != null) {
            if (output.length() > 0) output.append(QUERY_STRING_KEY_VALUE_PAIR_TOKEN_SEPARATOR);
            if (value instanceof Object[]) {
                output.append(emit(key, (Object[])value, charset, encode));
            } else {
                output.append(emit(key, value, charset, encode));
            }
        }
    }

    return output.toString();
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Flips the given IData document so the keys become the values and the values become the keys.
 *
 * @param document  The IData document to be flipped.
 * @return          The flipped IData document.
 */
public static IData flip(IData document) {
    if (document == null) return null;

    IData output = IDataFactory.create();
    IDataCursor inputCursor = document.getCursor();
    IDataCursor outputCursor = output.getCursor();

    while(inputCursor.next()) {
        String key = inputCursor.getKey();
        Object value = inputCursor.getValue();

        if (value instanceof String) {
            outputCursor.insertAfter((String)value, key);
        }
    }

    inputCursor.destroy();
    outputCursor.destroy();

    return output;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Removes the given key and its associated value from the given cursor.
 *
 * @param cursor    The cursor to remove the key from.
 * @param key       The key to be removed.
 * @param required  Throws an exception if true and a non-null value is not associated with the given key.
 * @return          The value that was associated with the key.
 */
public static Object remove(IDataCursor cursor, String key, boolean required) {
    if (cursor == null || key == null) return null;

    Object value = null;

    if (cursor.first(key)) {
        value = cursor.getValue();
        cursor.delete();
    }

    if (value == null && required) {
        throw new RuntimeException(new NoSuchFieldException(MessageFormat.format("Key \"{0}\" either does not exist or is associated with a null value", key)));
    }

    return value;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Returns the value associated with the given key from the IDataCursor.
 *
 * @param cursor        The IDataCursor to add the key value association to.
 * @param required      Throws an exception if true and a value is not associated with any of the given keys.
 * @param keys          One or more keys in order of precedence.
 * @return              The first value found associated with a given key.
 */
public static Object get(IDataCursor cursor, boolean required, String... keys) {
    if (cursor == null || keys == null || keys.length == 0 || keys[0] == null) return null;

    Object value = null;

    for (String key : keys) {
        if (key != null) {
            if (cursor.first(key)) {
                value = cursor.getValue();
            }
            if (value != null) break;
        }
    }

    if (value == null && required) {
        if (keys.length == 1) {
            throw new RuntimeException(new NoSuchFieldException(MessageFormat.format("Specified key does not exist or is associated with null value: {0}", keys[0])));
        } else {
            throw new RuntimeException(new NoSuchFieldException(MessageFormat.format("Specified keys do not exist or are associated with null values: {0}", ArrayHelper.join(keys, Sanitization.REMOVE_NULLS))));
        }
    }

    return value;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Creates a ConcurrentMapIData which is a recursive clone of the given IData.
 *
 * @param document  The IData to clone.
 * @param sorted    Whether to sort by keys.
 * @return          A ConcurrentMapIData clone of the given document.
 */
public static ConcurrentMapIData<String, Object> of(IData document, boolean sorted) {
    if (document == null) return null;

    ConcurrentMapIData<String, Object> map = new ConcurrentMapIData<String, Object>(sorted);

    IDataCursor cursor = document.getCursor();
    try {
        while(cursor.next()) {
            String key = cursor.getKey();
            Object value = cursor.getValue();

            if (value instanceof IData[] || value instanceof Table || value instanceof IDataCodable[] || value instanceof IDataPortable[] || value instanceof ValuesCodable[]) {
                value = of(IDataHelper.toIDataArray(value), sorted);
            } else if (value instanceof IData || value instanceof IDataCodable || value instanceof IDataPortable || value instanceof ValuesCodable) {
                value = of(IDataHelper.toIData(value), sorted);
            }

            map.put(key, value);
        }
    } finally {
        cursor.destroy();
    }

    return map;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Performs variable substitution on all elements of the given IData input document.
 *
 * @param document              The IData document to perform variable substitution on.
 * @param defaultValue          The value to substitute if a variable cannot be resolved.
 * @param recurse               Whether embedded IData and IData[] should have variable substitution recursively
 *                              performed on them.
 * @param substitutionTypes     The type of substitutions to be performed.
 * @param scopes                One or more IData documents containing the variables being substituted.
 * @return                      The variable substituted IData.
 * @throws ServiceException     If an error occurs retrieving a global variable.
 */
public static IData substitute(IData document, String defaultValue, boolean recurse, EnumSet<SubstitutionType> substitutionTypes, IData... scopes) throws ServiceException {
    if (document == null) return null;
    if (scopes == null || scopes.length == 0) {
        scopes = new IData[1];
        scopes[0] = document;
    }

    IData output = IDataFactory.create();
    IDataCursor inputCursor = document.getCursor();
    IDataCursor outputCursor = output.getCursor();

    while (inputCursor.next()) {
        String key = inputCursor.getKey();
        Object value = inputCursor.getValue();

        if (value != null) {
            if (recurse && (value instanceof IData[] || value instanceof Table || value instanceof IDataCodable[] || value instanceof IDataPortable[] || value instanceof ValuesCodable[])) {
                value = substitute(IDataHelper.toIDataArray(value), defaultValue, recurse, substitutionTypes, scopes);
            } else if (recurse && (value instanceof IData || value instanceof IDataCodable || value instanceof IDataPortable || value instanceof ValuesCodable)) {
                value = substitute(IDataHelper.toIData(value), defaultValue, recurse, substitutionTypes, scopes);
            } else if (value instanceof String) {
                value = substitute((String)value, defaultValue, substitutionTypes, scopes);
            } else if (value instanceof String[]) {
                value = substitute((String[])value, defaultValue, substitutionTypes, scopes);
            } else if (value instanceof String[][]) {
                value = substitute((String[][])value, defaultValue, substitutionTypes, scopes);
            }
        }
        IDataUtil.put(outputCursor, key, value);
    }

    inputCursor.destroy();
    outputCursor.destroy();

    return output;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Merges multiple IData documents recursively into a single given IData document.
 *
 * @param target    The IData document into which all the other given IData documents will be merged.
 * @param sources   One or more IData documents to be merged.
 * @return          The target IData document after being merged with the source IData documents.
 */
public static IData mergeRecursivelyInto(IData target, Iterable<IData> sources) {
    if (sources != null) {
        for (IData source : sources) {
            if (source != null) {
                IDataCursor sourceCursor = source.getCursor();
                IDataCursor targetCursor = target.getCursor();

                try {
                    while(sourceCursor.next()) {
                        String key = sourceCursor.getKey();
                        Object value = sourceCursor.getValue();
                        Object existingValue = IDataUtil.get(targetCursor, key);

                        if (value != null) {
                            if ((value instanceof IData || value instanceof IDataCodable || value instanceof IDataPortable || value instanceof ValuesCodable) &&
                                (existingValue instanceof IData || existingValue instanceof IDataCodable || existingValue instanceof IDataPortable || existingValue instanceof ValuesCodable)) {
                                IDataUtil.put(targetCursor, key, mergeRecursivelyInto(toIData(existingValue), toIData(value)));
                            } else {
                                IDataUtil.put(targetCursor, key, value);
                            }
                        }
                    }
                } finally {
                    sourceCursor.destroy();
                    targetCursor.destroy();
                }
            }
        }
    }

    return target;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Returns a new IData document which is a copy of the given IData document.
 *
 * @param document  An IData document to be duplicated.
 * @param recurse   When true, nested IData documents and IData[] document lists will also be duplicated.
 * @return          A new IData document which is a copy of the given IData document.
 */
public static IData duplicate(IData document, boolean recurse) {
    if (document == null) return null;

    IData output = IDataFactory.create();
    IDataCursor inputCursor = document.getCursor();
    IDataCursor outputCursor = output.getCursor();

    while(inputCursor.next()) {
        String key = inputCursor.getKey();
        Object value = inputCursor.getValue();

        if (recurse) {
            if (value instanceof IData[] || value instanceof Table || value instanceof IDataCodable[] || value instanceof IDataPortable[] || value instanceof ValuesCodable[]) {
                value = duplicate(toIDataArray(value), recurse);
            } else if (value instanceof IData || value instanceof IDataCodable || value instanceof IDataPortable || value instanceof ValuesCodable) {
                value = duplicate(toIData(value), recurse);
            }
        }

        outputCursor.insertAfter(key, value);
    }

    inputCursor.destroy();
    outputCursor.destroy();

    return output;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Removes all null values from the given IData document.
 *
 * @param document  The IData document to be compacted.
 * @param recurse   Whether embedded IData and IData[] objects should be recursively compacted.
 * @return          The compacted IData.
 */
public static IData compact(IData document, boolean recurse) {
    if (document == null) return null;

    IData output = IDataFactory.create();
    IDataCursor inputCursor = document.getCursor();
    IDataCursor outputCursor = output.getCursor();

    while (inputCursor.next()) {
        String key = inputCursor.getKey();
        Object value = inputCursor.getValue();

        if (value != null) {
            if (recurse) {
                if (value instanceof IData[] || value instanceof Table || value instanceof IDataCodable[] || value instanceof IDataPortable[] || value instanceof ValuesCodable[]) {
                    value = compact(toIDataArray(value), recurse);
                } else if (value instanceof IData || value instanceof IDataCodable || value instanceof IDataPortable || value instanceof ValuesCodable) {
                    value = compact(toIData(value), recurse);
                } else if (value instanceof Object[][]) {
                    value = TableHelper.compact((Object[][])value);
                } else if (value instanceof Object[]) {
                    value = ArrayHelper.compact((Object[])value);
                }
            }
        }

        if (value != null) IDataUtil.put(outputCursor, key, value);
    }
    inputCursor.destroy();
    outputCursor.destroy();

    return output;
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Returns a MIME type string comprised of the components specified in the given IData document.
 *
 * @param document The IData document to be converted to a MIME type string.
 * @return A MIME type string representing the components specified in the given IData document.
 * @throws MimeTypeParseException If the given MIME type string is malformed.
 */
public static String emit(IData document) throws MimeTypeParseException {
    if (document == null) return null;

    IDataCursor cursor = document.getCursor();
    String type = IDataUtil.getString(cursor, "type");
    String subtype = IDataUtil.getString(cursor, "subtype");
    IData parameters = IDataUtil.getIData(cursor, "parameters");
    cursor.destroy();

    if (type == null) throw new IllegalArgumentException("type must not be null");
    if (subtype == null) throw new IllegalArgumentException("subtype must not be null");

    MimeType mimeType = new MimeType(type, subtype);

    if (parameters != null) {
        parameters = IDataHelper.sort(parameters, false, true);
        cursor = parameters.getCursor();
        while (cursor.next()) {
            String key = cursor.getKey();
            Object value = cursor.getValue();
            if (value instanceof String) {
                mimeType.setParameter(key, (String)value);
            }
        }
        cursor.destroy();
    }

    return mimeType.toString();
}
 

import com.wm.data.IDataCursor; //导入方法依赖的package包/类
/**
 * Inserts each item of the given input IDataCursor to the end of the given output IDataCursor with the keys
 * denormalized to a fully-qualified key.
 *
 * @param inputCursor   The cursor to source items to be denormalized from.
 * @param outputCursor  The cursor to insert the denormalized items into.
 * @param path          The original path to the IData document being denormalized from the inputCursor, or null.
 */
private static void denormalize(IDataCursor inputCursor, IDataCursor outputCursor, String path) {
    if (inputCursor == null || outputCursor == null) return;

    while(inputCursor.next()) {
        String key = inputCursor.getKey();
        Object value = inputCursor.getValue();

        if (value instanceof IData[] || value instanceof Table || value instanceof IDataCodable[] || value instanceof IDataPortable[] || value instanceof ValuesCodable[]) {
            denormalize(toIDataArray(value), outputCursor, path == null ? key : path + "/" + key);
        } else if (value instanceof IData || value instanceof IDataCodable || value instanceof IDataPortable || value instanceof ValuesCodable) {
            IData child = toIData(value);
            IDataCursor childCursor = child.getCursor();
            denormalize(childCursor, outputCursor, path == null ? key : path + "/" + key);
            childCursor.destroy();
        } else if (value instanceof Object[][]) {
            denormalize((Object[][])value, outputCursor, path == null ? key : path + "/" + key);
        } else if (value instanceof Object[]) {
            denormalize((Object[])value, outputCursor, path == null ? key : path + "/" + key);
        } else {
            outputCursor.insertAfter(path == null ? key : path + "/" + key, value);
        }
    }

    inputCursor.destroy();
    outputCursor.destroy();
}