com.datastax.oss.driver.internal.querybuilder.schema.OptionsUtils Maven / Gradle / Ivy
/*
* Copyright DataStax, Inc.
*
* Licensed 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.
*/
package com.datastax.oss.driver.internal.querybuilder.schema;
import edu.umd.cs.findbugs.annotations.NonNull;
import java.util.Map;
public class OptionsUtils {
@NonNull
public static String buildOptions(@NonNull Map options, boolean first) {
StringBuilder builder = new StringBuilder();
for (Map.Entry option : options.entrySet()) {
if (first) {
builder.append(" WITH ");
first = false;
} else {
builder.append(" AND ");
}
String value = OptionsUtils.extractOptionValue(option.getValue());
builder.append(option.getKey()).append("=").append(value);
}
return builder.toString();
}
@NonNull
private static String extractOptionValue(@NonNull Object option) {
StringBuilder optionValue = new StringBuilder();
if (option instanceof String) {
optionValue.append("'").append((String) option).append("'");
} else if (option instanceof Map) {
@SuppressWarnings("unchecked")
Map optionMap = (Map) option;
boolean first = true;
optionValue.append("{");
for (Map.Entry subOption : optionMap.entrySet()) {
if (first) {
first = false;
} else {
optionValue.append(",");
}
optionValue
.append("'")
.append(subOption.getKey())
.append("':")
.append(extractOptionValue(subOption.getValue()));
}
optionValue.append("}");
} else {
optionValue.append(option);
}
return optionValue.toString();
}
}