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Diffstat (limited to 'src/org/xbill/DNS/TXTBase.java')
-rw-r--r-- | src/org/xbill/DNS/TXTBase.java | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/org/xbill/DNS/TXTBase.java b/src/org/xbill/DNS/TXTBase.java new file mode 100644 index 0000000..fd99bfb --- /dev/null +++ b/src/org/xbill/DNS/TXTBase.java @@ -0,0 +1,123 @@ +// Copyright (c) 1999-2004 Brian Wellington (bwelling@xbill.org) + +package org.xbill.DNS; + +import java.io.*; +import java.util.*; + +/** + * Implements common functionality for the many record types whose format + * is a list of strings. + * + * @author Brian Wellington + */ + +abstract class TXTBase extends Record { + +private static final long serialVersionUID = -4319510507246305931L; + +protected List strings; + +protected +TXTBase() {} + +protected +TXTBase(Name name, int type, int dclass, long ttl) { + super(name, type, dclass, ttl); +} + +protected +TXTBase(Name name, int type, int dclass, long ttl, List strings) { + super(name, type, dclass, ttl); + if (strings == null) + throw new IllegalArgumentException("strings must not be null"); + this.strings = new ArrayList(strings.size()); + Iterator it = strings.iterator(); + try { + while (it.hasNext()) { + String s = (String) it.next(); + this.strings.add(byteArrayFromString(s)); + } + } + catch (TextParseException e) { + throw new IllegalArgumentException(e.getMessage()); + } +} + +protected +TXTBase(Name name, int type, int dclass, long ttl, String string) { + this(name, type, dclass, ttl, Collections.singletonList(string)); +} + +void +rrFromWire(DNSInput in) throws IOException { + strings = new ArrayList(2); + while (in.remaining() > 0) { + byte [] b = in.readCountedString(); + strings.add(b); + } +} + +void +rdataFromString(Tokenizer st, Name origin) throws IOException { + strings = new ArrayList(2); + while (true) { + Tokenizer.Token t = st.get(); + if (!t.isString()) + break; + try { + strings.add(byteArrayFromString(t.value)); + } + catch (TextParseException e) { + throw st.exception(e.getMessage()); + } + + } + st.unget(); +} + +/** converts to a String */ +String +rrToString() { + StringBuffer sb = new StringBuffer(); + Iterator it = strings.iterator(); + while (it.hasNext()) { + byte [] array = (byte []) it.next(); + sb.append(byteArrayToString(array, true)); + if (it.hasNext()) + sb.append(" "); + } + return sb.toString(); +} + +/** + * Returns the text strings + * @return A list of Strings corresponding to the text strings. + */ +public List +getStrings() { + List list = new ArrayList(strings.size()); + for (int i = 0; i < strings.size(); i++) + list.add(byteArrayToString((byte []) strings.get(i), false)); + return list; +} + +/** + * Returns the text strings + * @return A list of byte arrays corresponding to the text strings. + */ +public List +getStringsAsByteArrays() { + return strings; +} + +void +rrToWire(DNSOutput out, Compression c, boolean canonical) { + Iterator it = strings.iterator(); + while (it.hasNext()) { + byte [] b = (byte []) it.next(); + out.writeCountedString(b); + } +} + +} |