/** @see #toString(Query,IndexSchema) */ public static void toString(Query query, IndexSchema schema, Appendable out, int flags) throws IOException { boolean writeBoost = true; if (query instanceof TermQuery) { TermQuery q = (TermQuery) query; Term t = q.getTerm(); FieldType ft = writeFieldName(t.field(), schema, out, flags); writeFieldVal(t.bytes(), ft, out, flags); } else if (query instanceof TermRangeQuery) { TermRangeQuery q = (TermRangeQuery) query; String fname = q.getField(); FieldType ft = writeFieldName(fname, schema, out, flags); out.append(q.includesLower() ? '[' : '{'); BytesRef lt = q.getLowerTerm(); BytesRef ut = q.getUpperTerm(); if (lt == null) { out.append('*'); } else { writeFieldVal(lt, ft, out, flags); } out.append(" TO "); if (ut == null) { out.append('*'); } else { writeFieldVal(ut, ft, out, flags); } out.append(q.includesUpper() ? ']' : '}'); } else if (query instanceof NumericRangeQuery) { NumericRangeQuery q = (NumericRangeQuery) query; String fname = q.getField(); FieldType ft = writeFieldName(fname, schema, out, flags); out.append(q.includesMin() ? '[' : '{'); Number lt = q.getMin(); Number ut = q.getMax(); if (lt == null) { out.append('*'); } else { out.append(lt.toString()); } out.append(" TO "); if (ut == null) { out.append('*'); } else { out.append(ut.toString()); } out.append(q.includesMax() ? ']' : '}'); } else if (query instanceof BooleanQuery) { BooleanQuery q = (BooleanQuery) query; boolean needParens = false; if (q.getBoost() != 1.0 || q.getMinimumNumberShouldMatch() != 0 || q.isCoordDisabled()) { needParens = true; } if (needParens) { out.append('('); } boolean first = true; for (BooleanClause c : q.clauses()) { if (!first) { out.append(' '); } else { first = false; } if (c.isProhibited()) { out.append('-'); } else if (c.isRequired()) { out.append('+'); } Query subQuery = c.getQuery(); boolean wrapQuery = false; // TODO: may need to put parens around other types // of queries too, depending on future syntax. if (subQuery instanceof BooleanQuery) { wrapQuery = true; } if (wrapQuery) { out.append('('); } toString(subQuery, schema, out, flags); if (wrapQuery) { out.append(')'); } } if (needParens) { out.append(')'); } if (q.getMinimumNumberShouldMatch() > 0) { out.append('~'); out.append(Integer.toString(q.getMinimumNumberShouldMatch())); } if (q.isCoordDisabled()) { out.append("/no_coord"); } } else if (query instanceof PrefixQuery) { PrefixQuery q = (PrefixQuery) query; Term prefix = q.getPrefix(); FieldType ft = writeFieldName(prefix.field(), schema, out, flags); out.append(prefix.text()); out.append('*'); } else if (query instanceof WildcardQuery) { out.append(query.toString()); writeBoost = false; } else if (query instanceof FuzzyQuery) { out.append(query.toString()); writeBoost = false; } else if (query instanceof ConstantScoreQuery) { out.append(query.toString()); writeBoost = false; } else if (query instanceof WrappedQuery) { WrappedQuery q = (WrappedQuery) query; out.append(q.getOptions()); toString(q.getWrappedQuery(), schema, out, flags); writeBoost = false; // we don't use the boost on wrapped queries } else { out.append(query.getClass().getSimpleName() + '(' + query.toString() + ')'); writeBoost = false; } if (writeBoost && query.getBoost() != 1.0f) { out.append("^"); out.append(Float.toString(query.getBoost())); } }