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Diffstat (limited to 'branches/sdo-1.0-incubating/impl/src/main/java/org/apache/tuscany/sdo/helper/DataHelperImpl.java')
| -rw-r--r-- | branches/sdo-1.0-incubating/impl/src/main/java/org/apache/tuscany/sdo/helper/DataHelperImpl.java | 616 |
1 files changed, 0 insertions, 616 deletions
diff --git a/branches/sdo-1.0-incubating/impl/src/main/java/org/apache/tuscany/sdo/helper/DataHelperImpl.java b/branches/sdo-1.0-incubating/impl/src/main/java/org/apache/tuscany/sdo/helper/DataHelperImpl.java deleted file mode 100644 index 49c92d6093..0000000000 --- a/branches/sdo-1.0-incubating/impl/src/main/java/org/apache/tuscany/sdo/helper/DataHelperImpl.java +++ /dev/null @@ -1,616 +0,0 @@ -/** - * - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ -package org.apache.tuscany.sdo.helper; - -import java.math.BigDecimal; -import java.math.BigInteger; -import java.text.ParseException; -import java.text.SimpleDateFormat; -import java.util.ArrayList; -import java.util.Calendar; -import java.util.Date; -import java.util.GregorianCalendar; -import java.util.Iterator; -import java.util.List; -import java.util.Locale; -import java.util.TimeZone; - -import org.apache.tuscany.sdo.util.DataObjectUtil; - -import commonj.sdo.Property; -import commonj.sdo.Type; -import commonj.sdo.helper.DataHelper; - -/** - * Data helper methods. - */ -public class DataHelperImpl implements DataHelper -{ - /** - * @param dateString - Must comply to the pattern of yyyy-MM-dd'T'HH:mm:ss'.'SSS'Z' - * @return null if dataString couldn't be parsed - */ - public synchronized Date toDate(String dateString) - { - SimpleDateFormat format; - Date result = null; - boolean negative = false; - String formatString; - dateString = dateString.trim(); - - if (dateString == null) - { - return null; - } - - // Determine if it is a negative Date, DateTime, or Duration - - if (dateString.length() > 2 && dateString.charAt(0) == '-' && dateString.charAt(1) != '-') - { - negative = true; - dateString = dateString.substring(1); - } - - // SDO Date Format ends with a Z - - if (dateString.endsWith("Z")) - { - if (dateString.indexOf('.') != -1) - formatString = new String("yyyy-MM-dd'T'HH:mm:ss'.'S'Z'"); - else - formatString = new String ("yyyy-MM-dd'T'HH:mm:ss'Z'"); - - format = new SimpleDateFormat(formatString); - format.setTimeZone(TimeZone.getTimeZone("UTC")); - - result = checkFormat(dateString, format); - - // If no match, continue to try further possibilities - - if (result != null) - { - if (negative) - return handleBCE(result); - else - return result; - } - - } - - // Duration format begins with a P - - if (dateString.startsWith("P")) - { - // Remove any spaces in the dateString - - String durationString = dateString.replaceAll(" ", ""); - - // Build the formatString based on the contents of dateString - - formatString = obtainDurationFormats(durationString); - format = new SimpleDateFormat(formatString); - result = checkFormat(durationString, format); - if (result != null) - { - if (negative) - return handleNegative(result); - else - return result; - } - } - - formatString = obtainSpecificFormat(dateString); - - if (formatString != null) - { - format = new SimpleDateFormat(formatString); - result = checkFormat(dateString, format); - - if (result != null) - { - if (negative) - return handleBCE(result); - else - return result; - } - } - - return null; - } - - private synchronized Date checkFormat(String dateString, SimpleDateFormat format) - { - String formatPattern = format.toPattern(); - StringBuffer addedFields = new StringBuffer(); - String fieldsString, parseString; - SimpleDateFormat compositeFormat; - Date dateValue; - - // For certain permissable input strings (e.g. those resulting from toYear - // toDay, toTime), there are fields missing which when converted to Date have - // default values. (e.g. Year -> 1970). Because of this, there can be great - // variation in how daylight savings time is accounted for. (e.g. In 1970 Britain - // was on DST year round, and during the summer of 1944 was on double daylight time.) - // Because these possible variations exist, it is assumed that the user would prefer - // the current handling of daylight savings time. As such, the year, month and day - // will default to their current values when absent. (The user should not be checking - // for Year=1970 (etc.) as evidence of taking the default, as explicitly setting a - // year to 1970 is valid and would then not be an instance of a default taken.) - - if (!(formatPattern.startsWith("P"))) - { - if (formatPattern.indexOf('y') == -1) - addedFields.append("yyyy "); - - if (formatPattern.indexOf('M') == -1) - addedFields.append("MM "); - - if (formatPattern.indexOf('d') == -1) - addedFields.append("dd "); - } - - fieldsString = addedFields.toString(); - - if (fieldsString.length() == 0) - { - parseString = dateString; - compositeFormat = format; - } - - else - { - compositeFormat = new SimpleDateFormat(fieldsString); - dateValue = new Date(System.currentTimeMillis()); - parseString = compositeFormat.format(dateValue) + dateString; - compositeFormat.applyPattern(fieldsString + formatPattern); - } - - try - { - return compositeFormat.parse(parseString); - } - - catch (ParseException parseException) - { - } - - return null; - } - - public synchronized String obtainSpecificFormat(String dateString) - { - StringBuffer formatBuffer = new StringBuffer(); - int colonIndex = dateString.indexOf(':'); - int hyphenIndex = dateString.indexOf('-'); - - if (dateString.startsWith("--")) - { - if (dateString.charAt(2) == '-') // starts with --- - formatBuffer.append("'---'dd"); - else if (dateString.substring(2).indexOf('-') == -1) - formatBuffer.append("'--'MM"); - else - formatBuffer.append("'--'MM'-'dd"); - } - - else if (colonIndex == 1 || colonIndex == 2) - { - if (dateString.indexOf('.') != -1) - formatBuffer.append("HH:mm:ss'.'S"); - else if (dateString.substring(colonIndex + 1).indexOf(':') != -1) - formatBuffer.append("HH:mm:ss"); - else - formatBuffer.append("HH:mm"); - } - - else if (hyphenIndex != -1) - { - if (dateString.substring(hyphenIndex + 1).indexOf('-') == -1) - formatBuffer.append("yyyy-MM"); - else if (colonIndex != -1) - { - if (dateString.indexOf('.') != -1) - formatBuffer.append("yyyy-MM-dd'T'HH:mm:ss'.'S"); - else if (dateString.substring(colonIndex + 1).indexOf(':') != -1) - formatBuffer.append("yyyy-MM-dd'T'HH:mm:ss"); - else - formatBuffer.append("yyyy-MM-dd'T'HH:mm"); - } - else - formatBuffer.append ("yyyy-MM-dd"); - } - else if (colonIndex == -1) // indexOf('-') == -1 - { - formatBuffer.append("yyyy"); - } - else - return null; - - // Determine if a Time Zone is included and needs to be parsed. - // --------------------------------- - // The only letter allowed in the above formats is 'T'. - // All times zones include at least one letter other than 'T'. - - int i = 0; - boolean letterFound = false; - char currentChar; - while (i < dateString.length() && !letterFound) - { - currentChar = dateString.charAt(i); - if (Character.isLetter(currentChar) && currentChar != 'T') - letterFound = true;; - i++; - } - - if (letterFound) - formatBuffer.append(" z"); - - return formatBuffer.toString(); - } - - public synchronized String obtainDurationFormats(String dateString) - { - String firstPart, secondPart; - StringBuffer formatBuffer = new StringBuffer("'P'"); - - // Must divide it into two parts to distinguish between Months and Minutes - - int time_index = dateString.indexOf('T'); - if (time_index != -1) - { - firstPart = dateString.substring(0, time_index + 1); - secondPart = dateString.substring(time_index); - } - else - { - firstPart = dateString; - secondPart = null; - } - - if (firstPart.indexOf('Y') != -1) - formatBuffer.append("yyyy'Y'"); - if (firstPart.indexOf('M') != -1) - formatBuffer.append("MM'M'"); - if (firstPart.indexOf('D') != -1) - formatBuffer.append("dd'D'"); - if (time_index != -1) - { - formatBuffer.append("'T'"); - - if (secondPart.indexOf('H') != -1) - formatBuffer.append("HH'H'"); - if (secondPart.indexOf('M') != -1) - formatBuffer.append("mm'M'"); - if (secondPart.indexOf("S.") != -1) - formatBuffer.append("ss'S'.S"); - else if (secondPart.indexOf('S') != -1) - formatBuffer.append("ss'S'"); - } - - return formatBuffer.toString().replaceAll("''", ""); - } - - // Return a negative Duration if a negative sign existed in dateString - public synchronized Date handleNegative(Date output) - { - return new Date(0 - output.getTime()); - } - - // Return the date in BCE if a negative sign existed in dateString - - public synchronized Date handleBCE(Date output) - { - GregorianCalendar temp = new GregorianCalendar(); - temp.setTime(output); - temp.set(GregorianCalendar.ERA, GregorianCalendar.BC); - - return temp.getTime(); - } - - public synchronized Calendar toCalendar(String dateString) - { - return toCalendar(dateString, null); - } - - public synchronized Calendar toCalendar(String dateString, Locale locale) - { - if (dateString == null) - { - return null; - } - - Date date = toDate(dateString); - if (date == null) - { - return null; - } - - Calendar calendar = locale != null ? new GregorianCalendar(locale) : new GregorianCalendar(); - calendar.setTime(date); - return calendar; - } - - public synchronized String toDateTime(Date date) - { - if (date == null) - { - return null; - } - - SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'.'SSS'Z'"); - f.setTimeZone(TimeZone.getTimeZone("UTC")); - - return f.format(date); - } - - public synchronized String toDuration(Date date) - { - if (date == null) - { - return null; - } - - SimpleDateFormat f = new SimpleDateFormat("'P'yyyy'Y' MM'M' dd'D' 'T' HH'H' mm'M' ss'S.'SSS"); - - return f.format(date); - } - - public synchronized String toTime(Date date) - { - if (date == null) - { - return null; - } - - SimpleDateFormat f = new SimpleDateFormat("HH:mm:ss'.'SSS zz"); - - return f.format(date); - } - - public synchronized String toDay(Date date) - { - if (date == null) - { - return null; - } - - SimpleDateFormat f = new SimpleDateFormat("---dd zz"); - - return f.format(date); - } - - public synchronized String toMonth(Date date) - { - if (date == null) - { - return null; - } - - SimpleDateFormat f = new SimpleDateFormat("--MM zz"); - - return f.format(date); - } - - public synchronized String toMonthDay(Date date) - { - if (date == null) - { - return null; - } - - SimpleDateFormat f = new SimpleDateFormat("--MM-dd zz"); - - return f.format(date); - } - - public synchronized String toYear(Date date) - { - if (date == null) - { - return null; - } - - SimpleDateFormat f = new SimpleDateFormat("yyyy zz"); - - return f.format(date); - } - - public synchronized String toYearMonth(Date date) - { - if (date == null) - { - return null; - } - - SimpleDateFormat f = new SimpleDateFormat("yyyy-MM zz"); - - return f.format(date); - } - - public synchronized String toYearMonthDay(Date date) - { - if (date == null) - { - return null; - } - - SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd zz"); - - return f.format(date); - } - - public synchronized String toDateTime(Calendar calendar) - { - if (calendar == null) - { - return null; - } - - return toDateTime(calendar.getTime()); - } - - public synchronized String toDuration(Calendar calendar) - { - if (calendar == null) - { - return null; - } - - return toDuration(calendar.getTime()); - } - - public synchronized String toTime(Calendar calendar) - { - if (calendar == null) - { - return null; - } - - return toTime(calendar.getTime()); - } - - public synchronized String toDay(Calendar calendar) - { - if (calendar == null) - { - return null; - } - - return toDay(calendar.getTime()); - } - - public synchronized String toMonth(Calendar calendar) - { - if (calendar == null) - { - return null; - } - - return toMonth(calendar.getTime()); - } - - public synchronized String toMonthDay(Calendar calendar) - { - if (calendar == null) - { - return null; - } - - return toMonthDay(calendar.getTime()); - } - - public synchronized String toYear(Calendar calendar) - { - if (calendar == null) - { - return null; - } - - return toYear(calendar.getTime()); - } - - public synchronized String toYearMonth(Calendar calendar) - { - if (calendar == null) - { - return null; - } - - return toYearMonth(calendar.getTime()); - } - - public synchronized String toYearMonthDay(Calendar calendar) - { - if (calendar == null) - { - return null; - } - - return toYearMonthDay(calendar.getTime()); - } - - public Object convert(Type type, Object value) - { - Class typeClass = type.getInstanceClass(); - if (typeClass.isInstance(value)) - return value; - - if (typeClass == BigDecimal.class) { - return DataObjectUtil.getBigDecimal(value); - } - else if (typeClass == BigInteger.class) { - return DataObjectUtil.getBigInteger(value); - } - else if (typeClass == boolean.class || typeClass == Boolean.class) { - return new Boolean(DataObjectUtil.getBoolean(value)); - } - else if (typeClass == byte.class || typeClass == Byte.class) { - return new Byte(DataObjectUtil.getByte(value)); - } - else if (typeClass == byte[].class) { - return DataObjectUtil.getBytes(value); - } - else if (typeClass == char.class || typeClass == Character.class) { - return new Character(DataObjectUtil.getChar(value)); - } - else if (typeClass == Date.class) { - return DataObjectUtil.getDate(value); - } - else if (typeClass == double.class || typeClass == Double.class) { - return new Double(DataObjectUtil.getDouble(value)); - } - else if (typeClass == float.class || typeClass == Float.class) { - return new Float(DataObjectUtil.getFloat(value)); - } - else if (typeClass == int.class || typeClass == Integer.class) { - return new Integer(DataObjectUtil.getInt(value)); - } - else if (typeClass == long.class || typeClass == Long.class) { - return new Long(DataObjectUtil.getLong(value)); - } - else if (typeClass == short.class || typeClass == Short.class) { - return new Short(DataObjectUtil.getShort(value)); - } - else if (typeClass == String.class) { - return DataObjectUtil.getString(value); - } - - throw new IllegalArgumentException(); - } - - public Object convert(Property property, Object value) - { - Type type = property.getType(); - if (!property.isMany()) - { - return convert(type, value); - } - else - { - List listValue = (List)value; - List listResult = new ArrayList(); - for (Iterator iter = listValue.iterator(); iter.hasNext(); ) { - listResult.add(convert(type, iter.next())); - } - return listResult; - } - } - -} |