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/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog2.plugin.configuration;
import com.fasterxml.jackson.annotation.JsonValue;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import org.graylog2.plugin.configuration.fields.BooleanField;
import org.graylog2.plugin.configuration.fields.ConfigurationField;
import org.graylog2.plugin.configuration.fields.DropdownField;
import org.graylog2.plugin.configuration.fields.NumberField;
import org.graylog2.plugin.configuration.fields.TextField;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.annotation.Nonnull;
import java.util.List;
import java.util.Map;
public class ConfigurationRequest {
private static final Logger log = LoggerFactory.getLogger(ConfigurationRequest.class);
private static final String WILDCARD_IP_ADDRESS = "0.0.0.0";
private final Map fields = Maps.newLinkedHashMap();
public ConfigurationRequest() {}
public void putAll(Map fields) {
this.fields.putAll(fields);
}
public void addField(ConfigurationField f) {
fields.put(f.getName(), f);
}
public void addFields(List fields) {
fields.forEach(this::addField);
}
public boolean containsField(String fieldName) {
return fields.containsKey(fieldName);
}
public ConfigurationField getField(String fieldName) {
return fields.get(fieldName);
}
public Map getFields() {
return fields;
}
@Deprecated
public boolean removeField(String fieldName) {
return fields.remove(fieldName) != null;
}
public static ConfigurationRequest createWithFields(ConfigurationField... fields) {
final ConfigurationRequest configurationRequest = new ConfigurationRequest();
configurationRequest.addFields(Lists.newArrayList(fields));
return configurationRequest;
}
@JsonValue
public Map> asList() {
final Map> configs = Maps.newLinkedHashMap();
for (ConfigurationField f : fields.values()) {
final Map config = Maps.newHashMap();
config.put("type", f.getFieldType());
config.put("human_name", f.getHumanName());
config.put("description", f.getDescription());
config.put("default_value", f.getDefaultValue());
config.put("is_optional", f.isOptional().equals(ConfigurationField.Optional.OPTIONAL));
config.put("attributes", f.getAttributes());
config.put("additional_info", f.getAdditionalInformation());
configs.put(f.getName(), config);
}
return configs;
}
public void check(Configuration configuration) throws ConfigurationException {
for (ConfigurationField field : fields.values()) {
if (field.isOptional().equals(ConfigurationField.Optional.NOT_OPTIONAL)) {
final String type = field.getFieldType();
final String fieldName = field.getName();
log.debug("Checking for mandatory field \"{}\" of type {} in configuration", fieldName, type);
switch (type) {
case BooleanField.FIELD_TYPE:
if (!configuration.booleanIsSet(fieldName)) {
throw new ConfigurationException("Mandatory configuration field \"" + fieldName + "\" is missing or has the wrong data type");
}
break;
case NumberField.FIELD_TYPE:
if (!configuration.intIsSet(fieldName)) {
throw new ConfigurationException("Mandatory configuration field \"" + fieldName + "\" is missing or has the wrong data type");
}
break;
case TextField.FIELD_TYPE:
case DropdownField.FIELD_TYPE:
if (!configuration.stringIsSet(fieldName)) {
throw new ConfigurationException("Mandatory configuration field \"" + fieldName + "\" is missing or has the wrong data type");
}
break;
default:
throw new IllegalStateException("Unknown field type " + type + " for configuration field \"" + fieldName + "\". This is a bug.");
}
}
}
}
/**
* Creates a new {@link org.graylog2.plugin.configuration.Configuration configuration object} containing only the
* fields specified in this request object.
* @param config original Configuration
* @return filtered Configuration, not null but might be empty
*/
@Nonnull
public Configuration filter(Configuration config) {
final Map values = Maps.newHashMap();
for (final ConfigurationField field : fields.values()) {
final String name = field.getName();
final String type = field.getFieldType();
switch (type) {
case BooleanField.FIELD_TYPE:
if (config.booleanIsSet(name)) {
values.put(name, config.getBoolean(name));
}
break;
case NumberField.FIELD_TYPE:
if (config.intIsSet(name)) {
values.put(name, config.getInt(name));
}
break;
case TextField.FIELD_TYPE:
case DropdownField.FIELD_TYPE:
if (config.stringIsSet(name)) {
values.put(name, config.getString(name));
}
break;
default:
throw new IllegalStateException("Unknown field type " + type + " for configuration field \"" + name + "\". This is a bug.");
}
}
return new Configuration(values);
}
public static class Templates {
public static ConfigurationField bindAddress(String name) {
return new TextField(
name,
"Bind address",
WILDCARD_IP_ADDRESS,
"Address to listen on. For example 0.0.0.0 or 127.0.0.1."
);
}
public static ConfigurationField portNumber(String name, int port) {
return new NumberField(
name,
"Port",
port,
"Port to listen on.",
NumberField.Attribute.IS_PORT_NUMBER
);
}
public static ConfigurationField recvBufferSize(String name, int size) {
return new NumberField(
name,
"Receive Buffer Size",
size,
"The size in bytes of the recvBufferSize for network connections to this input.",
ConfigurationField.Optional.OPTIONAL,
NumberField.Attribute.ONLY_POSITIVE
);
}
}
}
