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package cuchaz.enigma.convert;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Collection;
import java.util.List;
import com.beust.jcommander.internal.Lists;
import cuchaz.enigma.mapping.ClassEntry;
import cuchaz.enigma.mapping.Entry;
import cuchaz.enigma.mapping.EntryFactory;
import cuchaz.enigma.mapping.FieldEntry;
import cuchaz.enigma.mapping.Type;
public class MatchesReader {
public static ClassMatches readClasses(File file)
throws IOException {
try (BufferedReader in = new BufferedReader(new FileReader(file))) {
ClassMatches matches = new ClassMatches();
String line = null;
while ((line = in.readLine()) != null) {
matches.add(readClassMatch(line));
}
return matches;
}
}
private static ClassMatch readClassMatch(String line)
throws IOException {
String[] sides = line.split(":", 2);
return new ClassMatch(readClasses(sides[0]), readClasses(sides[1]));
}
private static Collection<ClassEntry> readClasses(String in) {
List<ClassEntry> entries = Lists.newArrayList();
for (String className : in.split(",")) {
className = className.trim();
if (className.length() > 0) {
entries.add(new ClassEntry(className));
}
}
return entries;
}
public static <T extends Entry> MemberMatches<T> readMembers(File file)
throws IOException {
try (BufferedReader in = new BufferedReader(new FileReader(file))) {
MemberMatches<T> matches = new MemberMatches<T>();
String line = null;
while ((line = in.readLine()) != null) {
readMemberMatch(matches, line);
}
return matches;
}
}
private static <T extends Entry> void readMemberMatch(MemberMatches<T> matches, String line) {
if (line.startsWith("!")) {
T source = readEntry(line.substring(1));
matches.addUnmatchableSourceEntry(source);
} else {
String[] parts = line.split(":", 2);
T source = readEntry(parts[0]);
T dest = readEntry(parts[1]);
if (source != null && dest != null) {
matches.addMatch(source, dest);
} else if (source != null) {
matches.addUnmatchedSourceEntry(source);
} else if (dest != null) {
matches.addUnmatchedDestEntry(dest);
}
}
}
@SuppressWarnings("unchecked")
private static <T extends Entry> T readEntry(String in) {
if (in.length() <= 0) {
return null;
}
String[] parts = in.split(" ");
if (parts.length == 3 && parts[2].indexOf('(') < 0) {
return (T)new FieldEntry(
new ClassEntry(parts[0]),
parts[1],
new Type(parts[2])
);
} else {
assert(parts.length == 2 || parts.length == 3);
if (parts.length == 2) {
return (T)EntryFactory.getBehaviorEntry(parts[0], parts[1]);
} else if (parts.length == 3) {
return (T)EntryFactory.getBehaviorEntry(parts[0], parts[1], parts[2]);
} else {
throw new Error("Malformed behavior entry: " + in);
}
}
}
}
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