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- /*
- * SonarQube
- * Copyright (C) 2009-2019 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
- package org.sonar.application.command;
-
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.Collections;
- import java.util.HashMap;
- import java.util.LinkedHashSet;
- import java.util.List;
- import java.util.Map;
- import java.util.stream.Collectors;
- import javax.annotation.CheckForNull;
- import javax.annotation.Nullable;
- import org.sonar.process.MessageException;
- import org.sonar.process.Props;
-
- import static java.lang.String.format;
- import static java.util.Objects.requireNonNull;
- import static java.util.stream.Collectors.joining;
-
- public class JvmOptions<T extends JvmOptions> {
- private static final String JVM_OPTION_NOT_NULL_ERROR_MESSAGE = "a JVM option can't be null";
-
- private final HashMap<String, String> mandatoryOptions = new HashMap<>();
- private final LinkedHashSet<String> options = new LinkedHashSet<>();
-
- public JvmOptions() {
- this(Collections.emptyMap());
- }
-
- public JvmOptions(Map<String, String> mandatoryJvmOptions) {
- requireNonNull(mandatoryJvmOptions, JVM_OPTION_NOT_NULL_ERROR_MESSAGE)
- .entrySet()
- .stream()
- .filter(e -> {
- requireNonNull(e.getKey(), "JVM option prefix can't be null");
- if (e.getKey().trim().isEmpty()) {
- throw new IllegalArgumentException("JVM option prefix can't be empty");
- }
- requireNonNull(e.getValue(), "JVM option value can't be null");
- return true;
- }).forEach(e -> {
- String key = e.getKey().trim();
- String value = e.getValue().trim();
- mandatoryOptions.put(key, value);
- add(key + value);
- });
- }
-
- public T addFromMandatoryProperty(Props props, String propertyName) {
- String value = props.nonNullValue(propertyName);
- if (!value.isEmpty()) {
- List<String> jvmOptions = Arrays.stream(value.split(" (?=-)")).map(String::trim).collect(Collectors.toList());
- checkOptionFormat(propertyName, jvmOptions);
- checkMandatoryOptionOverwrite(propertyName, jvmOptions);
- options.addAll(jvmOptions);
- }
-
- return castThis();
- }
-
- private static void checkOptionFormat(String propertyName, List<String> jvmOptionsFromProperty) {
- List<String> invalidOptions = jvmOptionsFromProperty.stream()
- .filter(JvmOptions::isInvalidOption)
- .collect(Collectors.toList());
- if (!invalidOptions.isEmpty()) {
- throw new MessageException(format(
- "a JVM option can't be empty and must start with '-'. The following JVM options defined by property '%s' are invalid: %s",
- propertyName,
- invalidOptions.stream()
- .collect(joining(", "))));
- }
- }
-
- private void checkMandatoryOptionOverwrite(String propertyName, List<String> jvmOptionsFromProperty) {
- List<Match> matches = jvmOptionsFromProperty.stream()
- .map(jvmOption -> new Match(jvmOption, mandatoryOptionFor(jvmOption)))
- .filter(match -> match.getMandatoryOption() != null)
- .collect(Collectors.toList());
- if (!matches.isEmpty()) {
- throw new MessageException(format(
- "a JVM option can't overwrite mandatory JVM options. The following JVM options defined by property '%s' are invalid: %s",
- propertyName,
- matches.stream()
- .map(m -> m.getOption() + " overwrites " + m.mandatoryOption.getKey() + m.mandatoryOption.getValue())
- .collect(joining(", "))));
- }
- }
-
- /**
- * Add an option.
- * Argument is trimmed before being added.
- *
- * @throws IllegalArgumentException if argument is empty or does not start with {@code -}.
- */
- public T add(String str) {
- requireNonNull(str, JVM_OPTION_NOT_NULL_ERROR_MESSAGE);
- String value = str.trim();
- if (isInvalidOption(value)) {
- throw new IllegalArgumentException("a JVM option can't be empty and must start with '-'");
- }
- checkMandatoryOptionOverwrite(value);
- options.add(value);
-
- return castThis();
- }
-
- private void checkMandatoryOptionOverwrite(String value) {
- Map.Entry<String, String> overriddenMandatoryOption = mandatoryOptionFor(value);
- if (overriddenMandatoryOption != null) {
- throw new MessageException(String.format(
- "a JVM option can't overwrite mandatory JVM options. %s overwrites %s",
- value,
- overriddenMandatoryOption.getKey() + overriddenMandatoryOption.getValue()));
- }
- }
-
- @CheckForNull
- private Map.Entry<String, String> mandatoryOptionFor(String jvmOption) {
- return mandatoryOptions.entrySet().stream()
- .filter(s -> jvmOption.startsWith(s.getKey()) && !jvmOption.equals(s.getKey() + s.getValue()))
- .findFirst()
- .orElse(null);
- }
-
- private static boolean isInvalidOption(String value) {
- return value.isEmpty() || !value.startsWith("-");
- }
-
- @SuppressWarnings("unchecked")
- private T castThis() {
- return (T) this;
- }
-
- public List<String> getAll() {
- return new ArrayList<>(options);
- }
-
- @Override
- public String toString() {
- return options.toString();
- }
-
- private static final class Match {
- private final String option;
-
- private final Map.Entry<String, String> mandatoryOption;
-
- private Match(String option, @Nullable Map.Entry<String, String> mandatoryOption) {
- this.option = option;
- this.mandatoryOption = mandatoryOption;
- }
-
- String getOption() {
- return option;
- }
-
- @CheckForNull
- Map.Entry<String, String> getMandatoryOption() {
- return mandatoryOption;
- }
-
- }
- }
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