import java.nio.channels.FileChannel.MapMode;
public class DataFile {
- private RandomAccessFile rafile;
- private FileChannel channel;
- public MappedByteBuffer mapBuff;
- private final File file;
- private final String access;
-
- public DataFile(File file, String access) {
- this.file = file;
- this.access = access;
- }
- public void open() throws IOException {
- if(!file.exists()) throw new FileNotFoundException();
- rafile = new RandomAccessFile(file,access);
- channel = rafile.getChannel();
- mapBuff = channel.map("r".equals(access)?MapMode.READ_ONLY:MapMode.READ_WRITE,0,channel.size());
- }
- public boolean isOpened() {
- return mapBuff!=null;
- }
- public void close() throws IOException {
- if(channel!=null){
- channel.close();
- }
- if(rafile!=null) {
- rafile.close();
- }
- mapBuff = null;
- }
+ private RandomAccessFile rafile;
+ private FileChannel channel;
+ public MappedByteBuffer mapBuff;
+ private final File file;
+ private final String access;
+
+ public DataFile(File file, String access) {
+ this.file = file;
+ this.access = access;
+ }
+ public void open() throws IOException {
+ if(!file.exists()) throw new FileNotFoundException();
+ rafile = new RandomAccessFile(file,access);
+ channel = rafile.getChannel();
+ mapBuff = channel.map("r".equals(access)?MapMode.READ_ONLY:MapMode.READ_WRITE,0,channel.size());
+ }
+ public boolean isOpened() {
+ return mapBuff!=null;
+ }
+ public void close() throws IOException {
+ if(channel!=null){
+ channel.close();
+ }
+ if(rafile!=null) {
+ rafile.close();
+ }
+ mapBuff = null;
+ }
- public long size() throws IOException {
- return channel==null?0:channel.size();
- }
+ public long size() throws IOException {
+ return channel==null?0:channel.size();
+ }
- private synchronized int load(Token t) {
- int len = Math.min(mapBuff.limit()-t.next,t.buff.length);
- if(len>0) {
- mapBuff.position(t.next);
- mapBuff.get(t.buff,0,len);
- }
- return len<0?0:len;
- }
-
- public class Token {
- private byte[] buff;
- int pos, next, end;
-
- public Token(int size) {
- buff = new byte[size];
- pos = next = end = 0;
- }
-
- public boolean pos(int to) {
- pos = next = to;
- return (end=load(this))>0;
- }
-
- public boolean nextLine() {
- end = load(this);
- pos = next;
- for(int i=0;i<end;++i) {
- if(buff[i]=='\n') {
- end = i;
- next += i+1;
- return true;
- }
- }
- return false;
- }
-
- public IntBuffer getIntBuffer() {
- return ByteBuffer.wrap(buff).asIntBuffer();
- }
+ private synchronized int load(Token t) {
+ int len = Math.min(mapBuff.limit()-t.next,t.buff.length);
+ if(len>0) {
+ mapBuff.position(t.next);
+ mapBuff.get(t.buff,0,len);
+ }
+ return len<0?0:len;
+ }
+
+ public class Token {
+ private byte[] buff;
+ int pos, next, end;
+
+ public Token(int size) {
+ buff = new byte[size];
+ pos = next = end = 0;
+ }
+
+ public boolean pos(int to) {
+ pos = next = to;
+ return (end=load(this))>0;
+ }
+
+ public boolean nextLine() {
+ end = load(this);
+ pos = next;
+ for(int i=0;i<end;++i) {
+ if(buff[i]=='\n') {
+ end = i;
+ next += i+1;
+ return true;
+ }
+ }
+ return false;
+ }
+
+ public IntBuffer getIntBuffer() {
+ return ByteBuffer.wrap(buff).asIntBuffer();
+ }
- public String toString() {
- return new String(buff,0,end);
- }
-
- public class Field {
- char delim;
- int idx;
- ByteBuffer bb;
+ public String toString() {
+ return new String(buff,0,end);
+ }
+
+ public class Field {
+ char delim;
+ int idx;
+ ByteBuffer bb;
- public Field(char delimiter) {
- delim = delimiter;
- idx = 0;
- bb = null;
- }
-
- public Field reset() {
- idx = 0;
- return this;
- }
-
- public String next() {
- if(idx>=end)return null;
- int start = idx;
- byte c=0;
- int endStr = -1;
- while(idx<end && idx<buff.length && (c=buff[idx])!=delim && c!='\n') { // for DOS
- if(c=='\r')endStr=idx;
- ++idx;
- }
-
- if(endStr<0) {
- endStr=idx-start;
- } else {
- endStr=endStr-start;
- }
- ++idx;
- return new String(buff,start,endStr);
- }
+ public Field(char delimiter) {
+ delim = delimiter;
+ idx = 0;
+ bb = null;
+ }
+
+ public Field reset() {
+ idx = 0;
+ return this;
+ }
+
+ public String next() {
+ if(idx>=end)return null;
+ int start = idx;
+ byte c=0;
+ int endStr = -1;
+ while(idx<end && idx<buff.length && (c=buff[idx])!=delim && c!='\n') { // for DOS
+ if(c=='\r')endStr=idx;
+ ++idx;
+ }
+
+ if(endStr<0) {
+ endStr=idx-start;
+ } else {
+ endStr=endStr-start;
+ }
+ ++idx;
+ return new String(buff,start,endStr);
+ }
- public String at(int fieldOffset) {
- int start;
- byte c=0;
- for(int count = idx = start = 0; idx<end && idx<buff.length; ++idx) {
- if((c=buff[idx])==delim || c=='\n') {
- if(count++ == fieldOffset) {
- break;
- }
- start = idx+1;
- }
- }
- return new String(buff,start,(idx-start-(c=='\r'?1:0)));
- }
-
- public String atToEnd(int fieldOffset) {
- int start;
- byte c=0;
- for(int count = idx = start = 0; idx<end && idx<buff.length; ++idx) {
- if((c=buff[idx])==delim || c=='\n') {
- if(count++ == fieldOffset) {
- break;
- }
- start = idx+1;
- }
- }
-
- for(; idx<end && idx<buff.length && (c=buff[idx])!='\n'; ++idx) {
- ++idx;
- }
- return new String(buff,start,(idx-start-((c=='\r' || idx>=end)?1:0)));
- }
+ public String at(int fieldOffset) {
+ int start;
+ byte c=0;
+ for(int count = idx = start = 0; idx<end && idx<buff.length; ++idx) {
+ if((c=buff[idx])==delim || c=='\n') {
+ if(count++ == fieldOffset) {
+ break;
+ }
+ start = idx+1;
+ }
+ }
+ return new String(buff,start,(idx-start-(c=='\r'?1:0)));
+ }
+
+ public String atToEnd(int fieldOffset) {
+ int start;
+ byte c=0;
+ for(int count = idx = start = 0; idx<end && idx<buff.length; ++idx) {
+ if((c=buff[idx])==delim || c=='\n') {
+ if(count++ == fieldOffset) {
+ break;
+ }
+ start = idx+1;
+ }
+ }
+
+ for(; idx<end && idx<buff.length && (c=buff[idx])!='\n'; ++idx) {
+ ++idx;
+ }
+ return new String(buff,start,(idx-start-((c=='\r' || idx>=end)?1:0)));
+ }
- }
+ }
- public int pos() {
- return pos;
- }
- }
+ public int pos() {
+ return pos;
+ }
+ }
- public File file() {
- return file;
- }
-
+ public File file() {
+ return file;
+ }
+
}
Code Review / aaf / authz.git / blobdiff