content: /*
   * Copyright (c) 2015, 2021, Oracle and/or its affiliates.
   *
   * This program is free software; you can redistribute it and/or modify it under
   * the terms of the GNU General Public License, version 2.0, as published by the
   * Free Software Foundation.
   *
   * This program is also distributed with certain software (including but not
   * limited to OpenSSL) that is licensed under separate terms, as designated in a
   * particular file or component or in included license documentation. The
   * authors of MySQL hereby grant you an additional permission to link the
   * program and your derivative works with the separately licensed software that
   * they have included with MySQL.
   *
   * Without limiting anything contained in the foregoing, this file, which is
   * part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
   * version 1.0, a copy of which can be found at
   * http://oss.oracle.com/licenses/universal-foss-exception.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   * FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
   * for more details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
   */
  
  package com.mysql.cj.xdevapi;
  
  import java.io.IOException;
  import java.io.StringReader;
  import java.util.Map;
  
  import com.mysql.cj.Messages;
  import com.mysql.cj.MysqlxSession;
  import com.mysql.cj.exceptions.AssertionFailedException;
  import com.mysql.cj.exceptions.FeatureNotAvailableException;
  import com.mysql.cj.exceptions.MysqlErrorNumbers;
  import com.mysql.cj.protocol.x.XMessage;
  import com.mysql.cj.protocol.x.XMessageBuilder;
  import com.mysql.cj.protocol.x.XProtocolError;
  
  public class CollectionImpl implements Collection {
      private MysqlxSession mysqlxSession;
      private XMessageBuilder xbuilder;
      private SchemaImpl schema;
      private String name;
  
      /* package private */ CollectionImpl(MysqlxSession mysqlxSession, SchemaImpl schema, String name) {
          this.mysqlxSession = mysqlxSession;
          this.schema = schema;
          this.name = name;
          this.xbuilder = (XMessageBuilder) this.mysqlxSession.<XMessage>getMessageBuilder();
      }
  
      public Session getSession() {
          return this.schema.getSession();
      }
  
      public Schema getSchema() {
          return this.schema;
      }
  
      public String getName() {
          return this.name;
      }
  
      public DbObjectStatus existsInDatabase() {
          if (this.mysqlxSession.getDataStoreMetadata().tableExists(this.schema.getName(), this.name)) {
              // TODO should also check that the table has a DbObjectType.COLLECTION type  
              return DbObjectStatus.EXISTS;
          }
          return DbObjectStatus.NOT_EXISTS;
      }
  
      public AddStatement add(Map<String, ?> doc) {
          throw new FeatureNotAvailableException("TODO: ");
      }
  
      @Override
      public AddStatement add(String... jsonString) {
          try {
              DbDoc[] docs = new DbDoc[jsonString.length];
              for (int i = 0; i < jsonString.length; i++) {
                  docs[i] = JsonParser.parseDoc(new StringReader(jsonString[i]));
              }
              return add(docs);
          } catch (IOException ex) {
              throw AssertionFailedException.shouldNotHappen(ex);
          }
      }
  
      @Override
      public AddStatement add(DbDoc doc) {
          return new AddStatementImpl(this.mysqlxSession, this.schema.getName(), this.name, doc);
      }
  
      public AddStatement add(DbDoc... docs) {
          return new AddStatementImpl(this.mysqlxSession, this.schema.getName(), this.name, docs);
      }
  
      public FindStatement find() {
          return find(null);
      }
  
      public FindStatement find(String searchCondition) {
          return new FindStatementImpl(this.mysqlxSession, this.schema.getName(), this.name, searchCondition);
      }
  
      public ModifyStatement modify(String searchCondition) {
          return new ModifyStatementImpl(this.mysqlxSession, this.schema.getName(), this.name, searchCondition);
      }
  
      public RemoveStatement remove(String searchCondition) {
          return new RemoveStatementImpl(this.mysqlxSession, this.schema.getName(), this.name, searchCondition);
      }
  
      @Override
      public Result createIndex(String indexName, DbDoc indexDefinition) {
          return this.mysqlxSession.query(
                  this.xbuilder.buildCreateCollectionIndex(this.schema.getName(), this.name, new CreateIndexParams(indexName, indexDefinition)),
                  new UpdateResultBuilder<>());
      }
  
      @Override
      public Result createIndex(String indexName, String jsonIndexDefinition) {
          return this.mysqlxSession.query(
                  this.xbuilder.buildCreateCollectionIndex(this.schema.getName(), this.name, new CreateIndexParams(indexName, jsonIndexDefinition)),
                  new UpdateResultBuilder<>());
      }
  
      public void dropIndex(String indexName) {
          try {
              this.mysqlxSession.query(this.xbuilder.buildDropCollectionIndex(this.schema.getName(), this.name, indexName), new UpdateResultBuilder<>());
          } catch (XProtocolError e) {
              // If specified object does not exist, dropX() methods succeed (no error is reported)
              // TODO check MySQL > 8.0.1 for built in solution, like passing ifExists to dropView
              if (e.getErrorCode() != MysqlErrorNumbers.ER_CANT_DROP_FIELD_OR_KEY) {
                  throw e;
              }
          }
      }
  
      public long count() {
          try {
              return this.mysqlxSession.getDataStoreMetadata().getTableRowCount(this.schema.getName(), this.name);
          } catch (XProtocolError e) {
              if (e.getErrorCode() == MysqlErrorNumbers.ER_NO_SUCH_TABLE) {
                  throw new XProtocolError("Collection '" + this.name + "' does not exist in schema '" + this.schema.getName() + "'", e);
              }
              throw e;
          }
      }
  
      public DbDoc newDoc() {
          return new DbDocImpl();
      }
  
      @Override
      public boolean equals(Object other) {
          return other != null && other.getClass() == CollectionImpl.class && ((CollectionImpl) other).schema.equals(this.schema)
                  && ((CollectionImpl) other).mysqlxSession == this.mysqlxSession && this.name.equals(((CollectionImpl) other).name);
      }
  
      @Override
      public int hashCode() {
          assert false : "hashCode not designed";
          return 0;
      }
  
      @Override
      public String toString() {
          StringBuilder sb = new StringBuilder("Collection(");
          sb.append(ExprUnparser.quoteIdentifier(this.schema.getName()));
          sb.append(".");
          sb.append(ExprUnparser.quoteIdentifier(this.name));
          sb.append(")");
          return sb.toString();
      }
  
      @Override
      public Result replaceOne(String id, DbDoc doc) {
          if (id == null) {
              throw new XDevAPIError(Messages.getString("CreateTableStatement.0", new String[] { "id" }));
          }
          if (doc == null) {
              throw new XDevAPIError(Messages.getString("CreateTableStatement.0", new String[] { "doc" }));
          }
          JsonValue docId = doc.get("_id");
          if (docId != null && (!JsonString.class.isInstance(docId) || !id.equals(((JsonString) docId).getString()))) {
              throw new XDevAPIError(Messages.getString("Collection.DocIdMismatch"));
          }
          return modify("_id = :id").set("$", doc).bind("id", id).execute();
      }
  
      @Override
      public Result replaceOne(String id, String jsonString) {
          if (id == null) {
              throw new XDevAPIError(Messages.getString("CreateTableStatement.0", new String[] { "id" }));
          }
          if (jsonString == null) {
              throw new XDevAPIError(Messages.getString("CreateTableStatement.0", new String[] { "jsonString" }));
          }
          try {
              return replaceOne(id, JsonParser.parseDoc(new StringReader(jsonString)));
          } catch (IOException e) {
              throw AssertionFailedException.shouldNotHappen(e);
          }
      }
  
      @Override
      public Result addOrReplaceOne(String id, DbDoc doc) {
          if (id == null) {
              throw new XDevAPIError(Messages.getString("CreateTableStatement.0", new String[] { "id" }));
          }
          if (doc == null) {
              throw new XDevAPIError(Messages.getString("CreateTableStatement.0", new String[] { "doc" }));
          }
          JsonValue docId = doc.get("_id");
          if (docId == null) {
              doc.add("_id", new JsonString().setValue(id));
          } else if (!JsonString.class.isInstance(docId) || !id.equals(((JsonString) docId).getString())) {
              throw new XDevAPIError(Messages.getString("Collection.DocIdMismatch"));
          }
          return add(doc).setUpsert(true).execute();
      }
  
      @Override
      public Result addOrReplaceOne(String id, String jsonString) {
          if (id == null) {
              throw new XDevAPIError(Messages.getString("CreateTableStatement.0", new String[] { "id" }));
          }
          if (jsonString == null) {
              throw new XDevAPIError(Messages.getString("CreateTableStatement.0", new String[] { "jsonString" }));
          }
          try {
              return addOrReplaceOne(id, JsonParser.parseDoc(new StringReader(jsonString)));
          } catch (IOException e) {
              throw AssertionFailedException.shouldNotHappen(e);
          }
      }
  
      @Override
      public DbDoc getOne(String id) {
          return find("_id = :id").bind("id", id).execute().fetchOne();
      }
  
      @Override
      public Result removeOne(String id) {
          return remove("_id = :id").bind("id", id).execute();
      }
  }
  