Added toString() implementation to model classes (#271)

src/main/java/org/gitlab4j/api/models/AbstractUser.java

 package org.gitlab4j.api.models;
 
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-
 import java.util.Date;
 import java.util.List;
 
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+
 @XmlAccessorType(XmlAccessType.FIELD)
 @JsonIgnoreProperties(ignoreUnknown = true)
 public abstract class AbstractUser<U extends AbstractUser<U>> {
@@ -493,4 +495,9 @@ public abstract class AbstractUser<U extends AbstractUser<U>> {
         this.customAttributes = customAttributes;
         return (U)this;
     }
+    
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/Artifact.java

@@ -4,6 +4,7 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
 import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
@@ -70,4 +71,9 @@ public class Artifact {
     public void setFileFormat(String fileFormat) {
         this.fileFormat = fileFormat;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/ArtifactsFile.java

@@ -4,6 +4,8 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class ArtifactsFile {
@@ -12,18 +14,23 @@ public class ArtifactsFile {
     private Integer size;
 
     public String getFilename() {
-    return filename;
-  }
+        return filename;
+    }
 
     public void setFilename(String filename) {
-    this.filename = filename;
-  }
+        this.filename = filename;
+    }
 
     public Integer getSize() {
-    return size;
-  }
+        return size;
+    }
 
     public void setSize(Integer size) {
-    this.size = size;
-  }
+        this.size = size;
+    }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/AwardEmoji.java

@@ -7,6 +7,7 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
 import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
@@ -100,4 +101,9 @@ public class AwardEmoji {
     public void setAwardableType(AwardableType awardableType) {
         this.awardableType = awardableType;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/Branch.java

@@ -5,6 +5,8 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class Branch {
@@ -98,4 +100,9 @@ public class Branch {
         this.isProtected = isProtected;
         return this;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/Changes.java

 package org.gitlab4j.api.models;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
@@ -87,4 +89,9 @@ public class Changes {
     public void setRenamedFile(Boolean renamedFile) {
         this.renamedFile = renamedFile;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/Comment.java

@@ -7,6 +7,7 @@ import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
 import org.gitlab4j.api.Constants.LineType;
+import org.gitlab4j.api.utils.JacksonJson;
 
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
@@ -66,4 +67,9 @@ public class Comment {
     public void setNote(String note) {
         this.note = note;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/Commit.java

@@ -8,6 +8,8 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class Commit {
@@ -251,4 +253,9 @@ public class Commit {
         this.url = url;
         return this;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/CommitAction.java

 package org.gitlab4j.api.models;
 
+import org.gitlab4j.api.utils.JacksonJson;
 import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
@@ -135,4 +136,9 @@ public class CommitAction {
         this.lastCommitId = lastCommitId;
         return this;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/CommitPayload.java

@@ -2,6 +2,8 @@ package org.gitlab4j.api.models;
 
 import java.util.List;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 public class CommitPayload {
 
     private String branch;
@@ -58,4 +60,9 @@ public class CommitPayload {
     public void setAuthorName(String authorName) {
         this.authorName = authorName;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/CommitRef.java

 package org.gitlab4j.api.models;
 
-import com.fasterxml.jackson.annotation.JsonCreator;
-import com.fasterxml.jackson.annotation.JsonValue;
-import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
-
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
 /**
  * @author Евгений Уткин (evgeny.utkin@mediascope.net)
  */
@@ -54,4 +56,9 @@ public class CommitRef {
     public void setName(String name) {
         this.name = name;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/CommitStats.java

@@ -3,6 +3,8 @@ package org.gitlab4j.api.models;
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlAccessorType(XmlAccessType.FIELD)
 public class CommitStats {
 
@@ -33,4 +35,9 @@ public class CommitStats {
     public void setTotal(Integer total) {
         this.total = total;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/CommitStatus.java

@@ -7,6 +7,8 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class CommitStatus {
@@ -153,4 +155,9 @@ public class CommitStatus {
         this.targetUrl = targetUrl;
         return this;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/CompareResults.java

@@ -7,6 +7,8 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class CompareResults {
@@ -56,4 +58,9 @@ public class CompareResults {
     public void setCompareSameRef(Boolean compareSameRef) {
         this.compareSameRef = compareSameRef;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/DeployKey.java

@@ -7,6 +7,8 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class DeployKey {
@@ -56,4 +58,9 @@ public class DeployKey {
     public void setCreatedAt(Date createdAt) {
         this.createdAt = createdAt;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/Diff.java

@@ -5,6 +5,8 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
@@ -94,4 +96,9 @@ public class Diff {
     public void setRenamedFile(Boolean renamedFile) {
         this.renamedFile = renamedFile;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/Epic.java

@@ -7,6 +7,8 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class Epic {
@@ -140,4 +142,9 @@ public class Epic {
     public void setUpdatedAt(Date updatedAt) {
         this.updatedAt = updatedAt;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/EpicIssue.java

@@ -6,6 +6,8 @@ import java.util.Map;
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
@@ -78,4 +80,9 @@ public class EpicIssue extends Issue {
     public void setRelativePosition(Integer relativePosition) {
         this.relativePosition = relativePosition;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/Event.java

@@ -8,6 +8,7 @@ import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
 import org.gitlab4j.api.Constants.TargetType;
+import org.gitlab4j.api.utils.JacksonJson;
 
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
@@ -200,4 +201,9 @@ public class Event {
         this.createdAt = createdAt;
         return this;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/models/EventData.java

@@ -7,6 +7,8 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class EventData {
@@ -124,4 +126,9 @@ public class EventData {
         this.userName = userName;
         return this;
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }