// Copyright 2000-2005 the Contributors, as shown in the revision logs. // Licensed under the Apache Public Source License 2.0 ("the License"). // You may not use this file except in compliance with the License. package org.ibex.mail; import java.util.*; import org.ibex.mail.target.*; import org.ibex.util.*; /** * [immutable] This class encapsulates a query against a mailbox. * * The default implementation of Mailbox.query() simply retrieves * each message and calls Query.match() on it to filter out any * messages which do not match. * * Production-quality Mailbox implementations will want to inspect * the Query object passed to Mailbox.query() to perform more * efficient queries. */ public class Query { public static Query not(Query q) { return new Query(NOT, new Query[] { q },0,0,0,null,null,null,null,null); } public static Query and(Query q1, Query q2) { return new Query(AND,new Query[]{q1,q2},0,0,0,null,null,null,null,null); } public static Query and(Query[] q) { return new Query(AND, q,0,0,0,null, null, null, null, null ); } public static Query or(Query q1, Query q2) { return new Query(OR,new Query[] {q1,q2},0,0,0,null,null, null, null, null); } public static Query or(Query[] q) { return new Query(OR, q, 0, 0, 0, null, null, null, null, null); } public static Query uid(int min, int max) { return new Query(UID, null, min, max, 0, null, null, null, null, null); } public static Query imapNumber(int min,int max) { return new Query(IMAPNUM,null,min,max,0,null,null,null,null, null); } public static Query nntpNumber(int min,int max) { return new Query(NNTPNUM,null,min,max,0,null,null,null,null, null); } public static Query sent(Date e, Date l) { return new Query(SENT,null,0,0,0,null,null,e,l,null); } public static Query arrival(Date e, Date l) { return new Query(ARRIVAL,null,0,0,0,null,null, e,l,null);} public static Query header(String k, String v) { return new Query(HEADER, null, 0, 0, 0, k, v, null, null, null);} public static Query size(int min, int max) { return new Query(SIZE, null, min, max, 0, null, null, null, null, null);} public static Query body(String text) { return new Query(BODY, null, 0, 0, 0, null, text, null, null, null);} public static Query full(String text) { return new Query(FULL, null, 0, 0, 0, null, text, null, null, null);} public static Query uid(int[] set) { return new Query(UID, null, 0 ,0 ,0, null, null, null, null, set);} public static Query imapNumber(int[] set) { return new Query(IMAPNUM, null, 0 ,0 ,0, null, null, null, null, set);} public static Query all() { return new Query(ALL, null, 0, 0, 0, null, null, null, null, null); } public static Query deleted() { return new Query(DELETED, null, 0, 0, 0, null, null, null, null, null); } public static Query seen() { return new Query(SEEN, null, 0, 0, 0, null, null, null, null, null); } public static Query flagged() { return new Query(FLAGGED, null, 0, 0, 0, null, null, null, null, null); } public static Query draft() { return new Query(DRAFT, null, 0, 0, 0, null, null, null, null, null); } public static Query answered() { return new Query(ANSWERED, null, 0, 0, 0, null, null, null, null, null); } public static Query recent() { return new Query(RECENT, null, 0, 0, 0, null, null, null, null, null); } //public static Query set(boolean uid, int[] set) { return uid ? uid(set) : imapNumber(set); } private Query(int type, Query[] q,int min,int max, int flags, String key, String text, Date earliest, Date latest, int[] set) { this.type = type; this.q = q; this.min = min; this.max = max; this.flags = flags; this.key = key; this.text = text; this.earliest = earliest; this.latest = latest; this.set = set; } public static final int ALL = 0; public static final int NOT = 1; public static final int AND = 2; public static final int OR = 3; public static final int UID = 4; public static final int SENT = 5; public static final int ARRIVAL = 6; public static final int HEADER = 7; public static final int SIZE = 8; public static final int BODY = 9; public static final int FULL = 10; public static final int IMAPNUM = 11; public static final int DELETED = 12; public static final int SEEN = 13; public static final int FLAGGED = 14; public static final int DRAFT = 15; public static final int ANSWERED = 16; public static final int RECENT = 17; public static final int NNTPNUM = 18; public final int type; public final Query[] q; public final int min; public final int max; public final int flags; public final String key; public final String text; public final Date earliest; public final Date latest; public final int[] set; public boolean match(Mailbox.Iterator it) { switch(type) { case ALL: return true; case NOT: return !q[0].match(it); case OR: for(int i=0; i= it.uid()) return true; return false; } else return it.uid() >= min && it.uid() <= max; case IMAPNUM: if (set != null) { for(int i=0; i= it.imapNumber()) return true; return false; } else return it.imapNumber() >= min && it.imapNumber() <= max; case NNTPNUM: if (set != null) { for(int i=0; i= it.nntpNumber()) return true; return false; } else return it.imapNumber() >= min && it.imapNumber() <= max; case SENT: return (latest==null||it.cur().date.before(latest)) && (earliest==null||it.cur().date.after(earliest)); case ARRIVAL: return (latest == null || it.cur().arrival.before(latest)) && (earliest == null || it.cur().arrival.after(earliest)); case HEADER: return it.cur().headers.get(key) != null && ((String)it.cur().headers.get(key)).toLowerCase().indexOf(text.toLowerCase()) != -1; case DELETED: return (it.getFlags() & Mailbox.Flag.DELETED) !=0; case SEEN: return (it.getFlags() & Mailbox.Flag.SEEN)!=0; case FLAGGED: return (it.getFlags() & Mailbox.Flag.FLAGGED)!=0; case DRAFT: return (it.getFlags() & Mailbox.Flag.DRAFT)!=0; case ANSWERED: return (it.getFlags() & Mailbox.Flag.ANSWERED)!=0; case RECENT: return (it.getFlags() & Mailbox.Flag.RECENT)!=0; // FIXME: super inefficient case BODY: throw new RuntimeException("BODY searches are not supported because they are slow"); case FULL: throw new RuntimeException("FULL searches are not supported because they are slow"); case SIZE: throw new RuntimeException("SIZE searches are not supported because Adam is lame"); //return it.cur().size() >= min && it.cur().size() <= max; default: throw new Error("this should not happen"); } } // FIXME: normalize multiple-range queries using AND/OR? private static String range(int[] set, int min, int max, String name) { if (set != null && set.length==1) { min = set[0]; max = set[1]; set = null; } if (set == null) { if (min==max) return "name=="+min; return min+"<="+name+"<="+max; } else { StringBuffer sb = new StringBuffer(); for(int i=0; i0) sb.append(" || "); sb.append(set[i]+"<="+name+"<="+set[i+1]); } return sb.toString(); } } private static String range(Date earliest, Date latest, String name) { StringBuffer sb = new StringBuffer(); if (earliest != null) sb.append(earliest + "<="); sb.append(name); if (latest != null) sb.append("<="+latest); return sb.toString(); } public String toString() { switch(type) { case ALL: return "ALL"; case NOT: return "NOT " + q[0]; case OR: return StringUtil.join(q, " || "); case AND: return StringUtil.join(q, " && "); case UID: return range(set, min, max, "uid"); case IMAPNUM: return range(set, min, max, "imapnum"); case NNTPNUM: return range(set, min, max, "nntpnum"); case SENT: return range(earliest, latest, "sent"); case ARRIVAL: return range(earliest, latest, "arrival"); case HEADER: return "headers["+key+"]=="+text; case DELETED: return "deleted"; case SEEN: return "seen"; case FLAGGED: return "flagged"; case DRAFT: return "draft"; case ANSWERED: return "answered"; case RECENT: return "recent"; // FIXME: super inefficient case BODY: return ""; case FULL: return ""; case SIZE: return ""; default: throw new Error("this should not happen"); } } }