From c58f445fcef56a6440f3b21d54b390700623c48c Mon Sep 17 00:00:00 2001 From: siddharth0905 Date: Tue, 21 Aug 2018 17:55:30 +0530 Subject: Test coverage Increase test coverage Change-Id: I43e3149d0d4b07dc8e260f3d5fac025197882f3a Issue-ID: SDC-1673 Signed-off-by: siddharth0905 --- .../openecomp/core/utilities/CommonMethods.java | 606 ++++++++++----------- 1 file changed, 302 insertions(+), 304 deletions(-) (limited to 'openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/main/java/org/openecomp/core/utilities/CommonMethods.java') diff --git a/openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/main/java/org/openecomp/core/utilities/CommonMethods.java b/openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/main/java/org/openecomp/core/utilities/CommonMethods.java index 5a4d3cbd0d..b2cc289676 100644 --- a/openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/main/java/org/openecomp/core/utilities/CommonMethods.java +++ b/openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/main/java/org/openecomp/core/utilities/CommonMethods.java @@ -16,344 +16,342 @@ package org.openecomp.core.utilities; +import java.lang.reflect.Array; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.Set; +import java.util.UUID; + import org.apache.commons.collections4.MapUtils; import org.apache.commons.lang3.ArrayUtils; import org.apache.commons.lang3.StringUtils; -import java.util.*; - -import java.lang.reflect.Array; /** * This class provides auxiliary static methods. */ public class CommonMethods { - private static final char[] CHARS = new char[]{ - '0', '1', '2', '3', '4', '5', '6', '7', - '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' - }; - - /** - * Private default constructor to prevent instantiation of the class objects. - */ - private CommonMethods() { - } - - /** - * Checks whether the given collection is empty. - * - * @param collection A collection to be checked. - * @return true - if the collection is null or empty, false - otherwise. - */ - public static boolean isEmpty(Collection collection) { - return collection == null || collection.isEmpty(); - } - - /** - * Gets an universally unique identifier (UUID). - * - * @return String representation of generated UUID. - */ - public static String nextUuId() { - UUID uuid = UUID.randomUUID(); - - StringBuilder buff = new StringBuilder(32); - long2string(uuid.getMostSignificantBits(), buff); - long2string(uuid.getLeastSignificantBits(), buff); - - return buff.toString(); - } - - private static void long2string(long lng, StringBuilder buff) { - long value = lng; - for (int i = 0; i < 16; i++) { - long nextByte = value & 0xF000000000000000L; - value <<= 4; - boolean isNegative = nextByte < 0; - nextByte = nextByte >>> 60; - - if (isNegative) { - nextByte |= 0x08; - } - - buff.append(CHARS[(int) nextByte]); + private static final char[] CHARS = new char[] { + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' + }; + + /** + * Private default constructor to prevent instantiation of the class objects. + */ + private CommonMethods() { } - } - - /** - * Concatenates two Java arrays. The method allocates a new array and copies - * all elements to it or returns one of input arrays if another one is - * empty. - * - * @param the type parameter - * @param left Elements of this array will be copied to positions from 0 to left.length - - * 1 in the target array. - * @param right Elements of this array will be copied to positions from left.length to - * left.length + right.length - * @return A newly allocate Java array that accommodates elements of source (left/right) arrays - orone of source arrays if another is empty, null - otherwise. - */ - @SuppressWarnings("unchecked") - public static T[] concat(T[] left, T[] right) { - T[] res; - - if (ArrayUtils.isEmpty(left)) { - res = right; - } else if (ArrayUtils.isEmpty(right)) { - res = left; - } else { - res = (T[]) Array.newInstance(left[0].getClass(), left.length + right.length); - System.arraycopy(left, 0, res, 0, left.length); - System.arraycopy(right, 0, res, left.length, right.length); + + /** + * Gets an universally unique identifier (UUID). + * + * @return String representation of generated UUID. + */ + public static String nextUuId() { + UUID uuid = UUID.randomUUID(); + + StringBuilder buff = new StringBuilder(32); + long2string(uuid.getMostSignificantBits(), buff); + long2string(uuid.getLeastSignificantBits(), buff); + + return buff.toString(); } - return res; - } // concat - - /** - * New instance object. - * - * @param classname the classname - * @return the object - */ - public static Object newInstance(String classname) { - return newInstance(classname, Object.class); - } - - /** - * New instance t. - * - * @param the type parameter - * @param classname the classname - * @param cls the cls - * @return the t - */ - @SuppressWarnings("unchecked") - public static T newInstance(String classname, Class cls) { - - if (StringUtils.isEmpty(classname)) { - throw new IllegalArgumentException(); + private static void long2string(long lng, StringBuilder buff) { + long value = lng; + for (int i = 0; i < 16; i++) { + long nextByte = value & 0xF000000000000000L; + value <<= 4; + boolean isNegative = nextByte < 0; + nextByte = nextByte >>> 60; + + if (isNegative) { + nextByte |= 0x08; + } + + buff.append(CHARS[(int) nextByte]); + } } - if (cls == null) { - throw new IllegalArgumentException(); + /** + * Concatenates two Java arrays. The method allocates a new array and copies + * all elements to it or returns one of input arrays if another one is + * empty. + * + * @param the type parameter + * @param left Elements of this array will be copied to positions from 0 to left.length - + * 1 in the target array. + * @param right Elements of this array will be copied to positions from left.length to + * left.length + right.length + * @return A newly allocate Java array that accommodates elements of source (left/right) arrays + * or one of source arrays if another is empty, null - otherwise. + */ + @SuppressWarnings("unchecked") + public static T[] concat(T[] left, T[] right) { + T[] res; + + if (ArrayUtils.isEmpty(left)) { + res = right; + } else if (ArrayUtils.isEmpty(right)) { + res = left; + } else { + res = (T[]) Array.newInstance(left[0].getClass(), left.length + right.length); + System.arraycopy(left, 0, res, 0, left.length); + System.arraycopy(right, 0, res, left.length, right.length); + } + + return res; + } // concat + + /** + * New instance object. + * + * @param classname the classname + * @return the object + */ + public static Object newInstance(String classname) { + return newInstance(classname, Object.class); } - try { - Class temp = Class.forName(classname); + /** + * New instance t. + * + * @param the type parameter + * @param classname the classname + * @param cls the cls + * @return the t + */ + @SuppressWarnings("unchecked") + public static T newInstance(String classname, Class cls) { + + if (StringUtils.isEmpty(classname)) { + throw new IllegalArgumentException(); + } + + if (cls == null) { + throw new IllegalArgumentException(); + } + + try { + Class temp = Class.forName(classname); - if (!cls.isAssignableFrom(temp)) { - throw new ClassCastException( - String.format("Failed to cast from '%s' to '%s'", classname, cls.getName())); - } + if (!cls.isAssignableFrom(temp)) { + throw new ClassCastException( + String.format("Failed to cast from '%s' to '%s'", classname, cls.getName())); + } - Class impl = (Class) temp; + Class impl = (Class) temp; - return newInstance(impl); - } catch (ClassNotFoundException exception) { - throw new IllegalArgumentException(exception); + return newInstance(impl); + } catch (ClassNotFoundException exception) { + throw new IllegalArgumentException(exception); + } } - } - - /** - * New instance t. - * - * @param the type parameter - * @param cls the cls - * @return the t - */ - public static T newInstance(Class cls) { - try { - return cls.newInstance(); - } catch (InstantiationException | IllegalAccessException exception) { - throw new RuntimeException(exception); + + /** + * New instance t. + * + * @param the type parameter + * @param cls the cls + * @return the t + */ + public static T newInstance(Class cls) { + try { + return cls.newInstance(); + } catch (InstantiationException | IllegalAccessException exception) { + throw new RuntimeException(exception); + } } - } - - /** - * Print stack trace string. - * - * @return the string - */ - public static String printStackTrace() { - StringBuilder sb = new StringBuilder(); - StackTraceElement[] trace = Thread.currentThread().getStackTrace(); - for (StackTraceElement traceElement : trace) { - sb.append("\t ").append(traceElement); - sb.append(System.lineSeparator()); + + /** + * Print stack trace string. + * + * @return the string + */ + public static String printStackTrace() { + StringBuilder sb = new StringBuilder(); + StackTraceElement[] trace = Thread.currentThread().getStackTrace(); + for (StackTraceElement traceElement : trace) { + sb.append("\t ").append(traceElement); + sb.append(System.lineSeparator()); + } + return sb.toString(); } - return sb.toString(); - } - - /** - * Converts array of strings to comma-separated string. - * - * @param arr array of strings - * @return the string - */ - public static String arrayToCommaSeparatedString(String[] arr) { - return arrayToSeparatedString(arr, ','); - } - - /** - * Collection to comma separated string string. - * - * @param elementCollection the element collection - * @return the string - */ - public static String collectionToCommaSeparatedString(Collection elementCollection) { - return String.join(",", elementCollection); - } - - /** - * Converts array of strings to string separated with specified character. - * - * @param arr array of strings - * @param separator the separator - * @return the string - */ - public static String arrayToSeparatedString(String[] arr, char separator) { - return String.join(Character.toString(separator), arr); - } - - /** - * Converts array of strings to string separated with specified character. - * - * @param list array of strings - * @param separator the separator - * @return the string - */ - public static String listToSeparatedString(List list, char separator) { - return String.join(Character.toString(separator), list); - } - - /** - * Duplicate string with delimiter string. - * - * @param arg the arg - * @param separator the separator - * @param numberOfDuplications the number of duplications - * @return the string - */ - public static String duplicateStringWithDelimiter(String arg, char separator, - int numberOfDuplications) { - StringBuilder sb = new StringBuilder(); - - for (int i = 0; i < numberOfDuplications; i++) { - if (i > 0) { - sb.append(separator); - } - sb.append(arg); + + /** + * Converts array of strings to comma-separated string. + * + * @param arr array of strings + * @return the string + */ + public static String arrayToCommaSeparatedString(String[] arr) { + return arrayToSeparatedString(arr, ','); } - return sb.toString(); - } - - /** - * To single element set set. - * - * @param the class of the objects in the set - * @param element the single element to be contained in the returned Set - * @return an immutable set containing only the specified object. The returned set is - serializable. - */ - public static Set toSingleElementSet(T element) { - return Collections.singleton(element); - - } - - /** - * Merge lists of map list. - * - * @param the type parameter - * @param the type parameter - * @param target the target - * @param source the source - * @return the list - */ - public static List> mergeListsOfMap(List> target, - List> source) { - List> retList = new ArrayList<>(); - if (Objects.nonNull(target)) { - retList.addAll(target); + + /** + * Collection to comma separated string string. + * + * @param elementCollection the element collection + * @return the string + */ + public static String collectionToCommaSeparatedString(Collection elementCollection) { + return String.join(",", elementCollection); } - if (Objects.nonNull(source)) { - for (Map sourceMap : source) { - for (Map.Entry entry : sourceMap.entrySet()) { - mergeEntryInList(entry.getKey(), entry.getValue(), retList); - } - } + /** + * Converts array of strings to string separated with specified character. + * + * @param arr array of strings + * @param separator the separator + * @return the string + */ + public static String arrayToSeparatedString(String[] arr, char separator) { + return String.join(Character.toString(separator), arr); } - return retList; - } - - /** - * Merge lists list. - * - * @param the type parameter - * @param target the target - * @param source the source - * @return the list - */ - public static List mergeLists(List target, List source) { - List retList = new ArrayList<>(); - - if (Objects.nonNull(source)) { - retList.addAll(source); + + /** + * Converts array of strings to string separated with specified character. + * + * @param list array of strings + * @param separator the separator + * @return the string + */ + public static String listToSeparatedString(List list, char separator) { + return String.join(Character.toString(separator), list); } - if (Objects.nonNull(target)) { - retList.addAll(target); + + /** + * Duplicate string with delimiter string. + * + * @param arg the arg + * @param separator the separator + * @param numberOfDuplications the number of duplications + * @return the string + */ + public static String duplicateStringWithDelimiter(String arg, char separator, + int numberOfDuplications) { + StringBuilder sb = new StringBuilder(); + + for (int i = 0; i < numberOfDuplications; i++) { + if (i > 0) { + sb.append(separator); + } + sb.append(arg); + } + return sb.toString(); } - return retList; - } - - /** - * Merge entry in list. - * - * @param the type parameter - * @param the type parameter - * @param key the key - * @param value the value - * @param target the target - */ - public static void mergeEntryInList(T key, S value, List> target) { - boolean found = false; - for (Map map : target) { - if (map.containsKey(key)) { - map.put(key, value); - found = true; - } + /** + * To single element set set. + * + * @param the class of the objects in the set + * @param element the single element to be contained in the returned Set + * @return an immutable set containing only the specified object. The returned set is + * serializable. + */ + public static Set toSingleElementSet(T element) { + return Collections.singleton(element); + + } + + /** + * Merge lists of map list. + * + * @param the type parameter + * @param the type parameter + * @param target the target + * @param source the source + * @return the list + */ + public static List> mergeListsOfMap(List> target, + List> source) { + List> retList = new ArrayList<>(); + if (Objects.nonNull(target)) { + retList.addAll(target); + } + + if (Objects.nonNull(source)) { + for (Map sourceMap : source) { + for (Map.Entry entry : sourceMap.entrySet()) { + mergeEntryInList(entry.getKey(), entry.getValue(), retList); + } + } + } + return retList; } - if (!found) { - Map newMap = new HashMap<>(); - newMap.put(key, value); - target.add(newMap); + /** + * Merge lists list. + * + * @param the type parameter + * @param target the target + * @param source the source + * @return the list + */ + public static List mergeLists(List target, List source) { + List retList = new ArrayList<>(); + + if (Objects.nonNull(source)) { + retList.addAll(source); + } + if (Objects.nonNull(target)) { + retList.addAll(target); + } + + return retList; } - } - - - /** - * Merge maps map. - * - * @param the type parameter - * @param the type parameter - * @param firstMap the firstMap - * @param secondMap the secondMap - * @return the map - * Second Map is overridden data from the first map - */ - public static Map mergeMaps(Map firstMap, Map secondMap) { - Map retMap = new HashMap<>(); - if (MapUtils.isNotEmpty(firstMap)) { - retMap.putAll(firstMap); + + /** + * Merge entry in list. + * + * @param the type parameter + * @param the type parameter + * @param key the key + * @param value the value + * @param target the target + */ + public static void mergeEntryInList(T key, S value, List> target) { + boolean found = false; + for (Map map : target) { + if (map.containsKey(key)) { + map.put(key, value); + found = true; + } + } + + if (!found) { + Map newMap = new HashMap<>(); + newMap.put(key, value); + target.add(newMap); + } } - if (MapUtils.isNotEmpty(secondMap)) { - retMap.putAll(secondMap); + + + /** + * Merge maps map. + * + * @param the type parameter + * @param the type parameter + * @param firstMap the firstMap + * @param secondMap the secondMap + * @return the map + * Second Map is overridden data from the first map + */ + public static Map mergeMaps(Map firstMap, Map secondMap) { + Map retMap = new HashMap<>(); + if (MapUtils.isNotEmpty(firstMap)) { + retMap.putAll(firstMap); + } + if (MapUtils.isNotEmpty(secondMap)) { + retMap.putAll(secondMap); + } + return retMap; } - return retMap; - } } -- cgit 1.2.3-korg