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/*
* Copyright (c) 2008-2010, Dennis M. Sosnoski. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of
* JiBX nor the names of its contributors may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jibx.schema.codegen;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.util.ArrayList;
/**
* Utility methods for working with generated data models.
*/
public class DataModelUtils
{
/**
* Get the complete data model.
*
* @param directory directory
* @return ordered list of class name-values array pairs
*/
public static StringObjectPair[] getImage(PackageOrganizer directory) {
ArrayList packs = directory.getPackages();
ArrayList classdetails = new ArrayList();
for (int i = 0; i < packs.size(); i++) {
StringObjectPair[] classfields = ((PackageHolder)packs.get(i)).getClassFields();
for (int j = 0; j < classfields.length; j++) {
classdetails.add(classfields[j]);
}
}
return (StringObjectPair[])classdetails.toArray(new StringObjectPair[classdetails.size()]);
}
/**
* Write a complete generated data model.
*
* @param directory directory
* @param writer writer
* @throws IOException error
*/
public static void writeImage(PackageOrganizer directory, BufferedWriter writer) throws IOException {
ArrayList packs = directory.getPackages();
for (int i = 0; i < packs.size(); i++) {
StringObjectPair[] claspairs = ((PackageHolder)packs.get(i)).getClassFields();
for (int j = 0; j < claspairs.length; j++) {
StringObjectPair claspair = claspairs[j];
writer.write(claspair.getKey());
writer.newLine();
StringPair[] fields = (StringPair[])claspair.getValue();
for (int k = 0; k < fields.length; k++) {
StringPair field = fields[k];
writer.write(' ');
writer.write(field.getKey());
writer.write(" (");
writer.write(field.getValue());
writer.write(')');
writer.newLine();
}
}
}
}
/**
* Read a complete generated data model.
*
* @param reader Reader
* @return ordered list of class name-values array pairs
* @throws IOException error
*/
public static StringObjectPair[] readImage(BufferedReader reader) throws IOException {
String line;
ArrayList clasdetails = new ArrayList();
ArrayList values = new ArrayList();
String clasname = null;
while ((line = reader.readLine()) != null) {
if (line.charAt(0) == ' ') {
int split = line.indexOf(' ', 1);
String name = line.substring(1, split);
split = line.indexOf('(', split);
String type = line.substring(split+1, line.length()-1);
values.add(new StringPair(name, type));
} else {
if (clasname != null) {
StringPair[] valuepairs = (StringPair[])values.toArray(new StringPair[values.size()]);
clasdetails.add(new StringObjectPair(clasname, valuepairs));
}
values.clear();
clasname = line;
}
}
return (StringObjectPair[])clasdetails.toArray(new StringObjectPair[clasdetails.size()]);
}
/**
* List the values in a class.
*
* @param values array
* @param buff string buffer
*/
private static void listClass(StringPair[] values, StringBuffer buff) {
for (int i = 0; i < values.length; i++) {
buff.append(' ');
buff.append(values[i].getKey());
buff.append(" of type ");
buff.append(values[i].getValue());
buff.append('\n');
}
}
/**
* Find the difference between two class value lists.
*
* @param name name
* @param pairs1 array
* @param pairs2 array
* @param buff string buffer
*/
private static void classDiff(String name, StringPair[] pairs1, StringPair[] pairs2, StringBuffer buff) {
int index1 = 0;
int index2 = 0;
boolean header = true;
while (true) {
StringPair pair1 = null;
StringPair pair2 = null;
boolean delta = false;
int diff = -1;
if (index1 < pairs1.length) {
pair1 = pairs1[index1];
}
if (index2 < pairs2.length) {
pair2 = pairs2[index2];
if (pair1 == null) {
diff = 1;
} else {
diff = pair1.getKey().compareTo(pair2.getKey());
if (diff == 0) {
delta = !pair1.getValue().equals(pair2.getValue());
}
}
} else if (pair1 == null) {
break;
}
if (delta || diff != 0) {
if (header) {
buff.append("Difference(s) for class ");
buff.append(name);
buff.append(":\n");
header = false;
}
if (diff < 0) {
buff.append(" Missing value '");
buff.append(pair1.getKey());
buff.append("' of type ");
buff.append(pair1.getValue());
index1++;
} else if (diff > 0) {
buff.append(" Added value '");
buff.append(pair2.getKey());
buff.append("' of type ");
buff.append(pair2.getValue());
index2++;
} else {
buff.append(" Value '");
buff.append(pair1.getKey());
buff.append("' type was ");
buff.append(pair1.getValue());
buff.append(", changed to ");
buff.append(pair2.getValue());
}
buff.append('\n');
}
if (diff == 0) {
index1++;
index2++;
}
}
}
/**
* Find the difference between two data model images.
*
* @param pairs1 reference data model, as class name-value array pairs
* @param pairs2 comparison data model, as class name-value array pairs
* @return comparison text output
*/
public static String imageDiff(StringObjectPair[] pairs1, StringObjectPair[] pairs2) {
StringBuffer buff = new StringBuffer();
int index1 = 0;
int index2 = 0;
while (true) {
StringObjectPair pair1 = null;
StringObjectPair pair2 = null;
int diff = -1;
if (index1 < pairs1.length) {
pair1 = pairs1[index1];
}
if (index2 < pairs2.length) {
pair2 = pairs2[index2];
if (pair1 == null) {
diff = 1;
} else {
diff = pair1.getKey().compareTo(pair2.getKey());
}
} else if (pair1 == null) {
break;
}
if (diff == 0) {
classDiff(pair1.getKey(), (StringPair[])pair1.getValue(), (StringPair[])pair2.getValue(), buff);
index1++;
index2++;
} else if (diff < 0) {
buff.append("Second image is missing class " + pair1.getKey() + ":\n");
listClass((StringPair[])pair1.getValue(), buff);
index1++;
} else {
buff.append("Second image has added class " + pair2.getKey() + ":\n");
listClass((StringPair[])pair2.getValue(), buff);
index2++;
}
}
if (buff.length() == 0) {
return null;
} else {
return buff.toString();
}
}
}
