package de.danielnaber.languagetool.dev.index;

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.IOException;

import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.FilteredTermEnum;
import org.apache.lucene.search.MultiTermQuery;
import org.apache.lucene.search.regex.JavaUtilRegexCapabilities;
import org.apache.lucene.search.regex.RegexCapabilities;
import org.apache.lucene.search.regex.RegexQueryCapable;
import org.apache.lucene.search.regex.RegexTermEnum;
import org.apache.lucene.util.ToStringUtils;

/**
 * Implements the *NOT* regular expression term search query. The expressions
 * supported depend on the regular expression implementation used by way of the
 * {@link RegexCapabilities} interface.
 * 
 * @see RegexTermEnum
 */
public class RegexNotQuery extends MultiTermQuery implements RegexQueryCapable {
	private RegexCapabilities regexImpl = new JavaUtilRegexCapabilities();
	private Term term;

	/** Constructs a query for terms matching <code>term</code>. */
	public RegexNotQuery(Term term) {
		this.term = term;
	}

	public Term getTerm() {
		return term;
	}

	/**
	 * Defines which {@link RegexCapabilities} implementation is used by this
	 * instance.
	 * 
	 * @param impl
	 */
	public void setRegexImplementation(RegexCapabilities impl) {
		this.regexImpl = impl;
	}

	/**
	 * @return The implementation used by this instance.
	 */
	public RegexCapabilities getRegexImplementation() {
		return regexImpl;
	}

	@Override
	protected FilteredTermEnum getEnum(IndexReader reader) throws IOException {
		return new RegexNotTermEnum(reader, term, regexImpl);
	}

	@Override
	public String toString(String field) {
		StringBuilder buffer = new StringBuilder();
		if (!term.field().equals(field)) {
			buffer.append(term.field());
			buffer.append(":*NOT*");
		}
		buffer.append(term.text());
		buffer.append(ToStringUtils.boost(getBoost()));
		return buffer.toString();
	}

	/* generated by IntelliJ IDEA */
	@Override
	public boolean equals(Object o) {
		if (this == o)
			return true;
		if (o == null || getClass() != o.getClass())
			return false;
		if (!super.equals(o))
			return false;

		final RegexNotQuery that = (RegexNotQuery) o;

		return regexImpl.equals(that.regexImpl);
	}

	/* generated by IntelliJ IDEA */
	@Override
	public int hashCode() {
		int result = super.hashCode();
		result = 31 * result + regexImpl.hashCode();
		return result;
	}
}

package de.danielnaber.languagetool.dev.index;

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.IOException;

import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.FilteredTermEnum;
import org.apache.lucene.search.regex.RegexCapabilities;
import org.apache.lucene.search.regex.RegexQuery;
import org.apache.lucene.search.regex.RegexTermEnum;
import org.apache.lucene.util.ToStringUtils;

/**
 * Implements the *NOT* regular expression term search query. The expressions supported depend on
 * the regular expression implementation used by way of the {@link RegexCapabilities} interface.
 * 
 * @see RegexTermEnum
 */
public class RegexNotQuery extends RegexQuery {

  private static final long serialVersionUID = -4990041844164168930L;

  /** Constructs a query for terms "NOT" matching <code>term</code>. */
  public RegexNotQuery(Term term) {
    super(term);
  }

  @Override
  protected FilteredTermEnum getEnum(IndexReader reader) throws IOException {
    return new RegexNotTermEnum(reader, this.getTerm(), this.getRegexImplementation());
  }

  @Override
  public String toString(String field) {
    StringBuilder buffer = new StringBuilder();
    if (!this.getTerm().field().equals(field)) {
      buffer.append(this.getTerm().field());
      buffer.append(":*NOT*");
    }
    buffer.append(this.getTerm().text());
    buffer.append(ToStringUtils.boost(getBoost()));
    return buffer.toString();
  }

  /* generated by IntelliJ IDEA */
  @Override
  public boolean equals(Object o) {
    if (this == o)
      return true;
    if (o == null || getClass() != o.getClass())
      return false;
    if (!super.equals(o))
      return false;

    final RegexNotQuery that = (RegexNotQuery) o;

    return this.getRegexImplementation().equals(that.getRegexImplementation());
  }

  @Override
  public int hashCode() {
    int result = super.hashCode();
    result = 31 * result + this.getRegexImplementation().hashCode();
    return result;
  }
}

make RegexNotQuery sub-class-of RegexQuery