org.sonar.core.issue.FieldDiffs.java Source code

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Here is the source code for org.sonar.core.issue.FieldDiffs.java

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/*
 * SonarQube
 * Copyright (C) 2009-2017 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.core.issue;

import com.google.common.base.Splitter;
import com.google.common.base.Strings;
import com.google.common.collect.Maps;
import java.io.Serializable;
import java.util.Date;
import java.util.Map;
import javax.annotation.CheckForNull;
import javax.annotation.Nullable;

import static com.google.common.base.Strings.isNullOrEmpty;

/**
 * PLUGINS MUST NOT USE THIS CLASS, EXCEPT FOR UNIT TESTING.
 *
 * @since 3.6
 */
public class FieldDiffs implements Serializable {

    public static final Splitter FIELDS_SPLITTER = Splitter.on(',').omitEmptyStrings();

    private String issueKey;
    private String userLogin;
    private Date creationDate;

    private final Map<String, Diff> diffs = Maps.newLinkedHashMap();

    public Map<String, Diff> diffs() {
        return diffs;
    }

    public Diff get(String field) {
        return diffs.get(field);
    }

    @CheckForNull
    public String userLogin() {
        return userLogin;
    }

    public FieldDiffs setUserLogin(@Nullable String s) {
        this.userLogin = s;
        return this;
    }

    public Date creationDate() {
        return creationDate;
    }

    public FieldDiffs setCreationDate(Date creationDate) {
        this.creationDate = creationDate;
        return this;
    }

    public String issueKey() {
        return issueKey;
    }

    public FieldDiffs setIssueKey(String issueKey) {
        this.issueKey = issueKey;
        return this;
    }

    @SuppressWarnings("unchecked")
    public FieldDiffs setDiff(String field, @Nullable Serializable oldValue, @Nullable Serializable newValue) {
        Diff diff = diffs.get(field);
        if (diff == null) {
            diff = new Diff(oldValue, newValue);
            diffs.put(field, diff);
        } else {
            diff.setNewValue(newValue);
        }
        return this;
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        boolean notFirst = false;
        for (Map.Entry<String, Diff> entry : diffs.entrySet()) {
            if (notFirst) {
                sb.append(',');
            } else {
                notFirst = true;
            }
            sb.append(entry.getKey());
            sb.append('=');
            sb.append(entry.getValue().toString());
        }
        return sb.toString();
    }

    public static FieldDiffs parse(@Nullable String s) {
        FieldDiffs diffs = new FieldDiffs();
        if (isNullOrEmpty(s)) {
            return diffs;
        }
        Iterable<String> fields = FIELDS_SPLITTER.split(s);
        for (String field : fields) {
            String[] keyValues = field.split("=");
            if (keyValues.length == 2) {
                String[] values = keyValues[1].split("\\|");
                String oldValue = "";
                String newValue = "";
                if (values.length == 1) {
                    newValue = Strings.nullToEmpty(values[0]);
                } else if (values.length == 2) {
                    oldValue = Strings.nullToEmpty(values[0]);
                    newValue = Strings.nullToEmpty(values[1]);
                }
                diffs.setDiff(keyValues[0], oldValue, newValue);
            } else {
                diffs.setDiff(keyValues[0], "", "");
            }
        }
        return diffs;
    }

    public static class Diff<T extends Serializable> implements Serializable {
        private T oldValue;
        private T newValue;

        public Diff(@Nullable T oldValue, @Nullable T newValue) {
            this.oldValue = oldValue;
            this.newValue = newValue;
        }

        @CheckForNull
        public T oldValue() {
            return oldValue;
        }

        @CheckForNull
        public Long oldValueLong() {
            return toLong(oldValue);
        }

        @CheckForNull
        public T newValue() {
            return newValue;
        }

        @CheckForNull
        public Long newValueLong() {
            return toLong(newValue);
        }

        void setNewValue(T t) {
            this.newValue = t;
        }

        @CheckForNull
        private static Long toLong(@Nullable Serializable value) {
            if (value != null && !"".equals(value)) {
                try {
                    return Long.valueOf((String) value);
                } catch (ClassCastException e) {
                    return (Long) value;
                }
            }
            return null;
        }

        @Override
        public String toString() {
            // TODO escape , and | characters
            StringBuilder sb = new StringBuilder();
            if (newValue != null) {
                if (oldValue != null) {
                    sb.append(oldValue.toString());
                    sb.append('|');
                }
                sb.append(newValue.toString());
            }
            return sb.toString();
        }
    }
}