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Ajay Kannan
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Include delete action + minor edits
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-35
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‎gcloud-java-examples/README.md‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -33,7 +33,7 @@ To run examples from your command line:
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1. Login using gcloud SDK (`gcloud auth login` in command line)
3535

36-
2. If you are running an example other than `ResourceManagerExample`, set your current project using `gcloud config set project PROJECT_ID`. If you are running `ResourceManagerExample`, unset your project by using `gcloud config unset project`.
36+
2. Set your current project using `gcloud config set project PROJECT_ID`. This step is not necessary for `ResourceManagerExample`.
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3838
3. Compile using Maven (`mvn compile` in command line from your base project directory)
3939

‎gcloud-java-examples/src/main/java/com/google/gcloud/examples/ResourceManagerExample.java‎

Lines changed: 104 additions & 34 deletions
Original file line numberDiff line numberDiff line change
@@ -16,25 +16,27 @@
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package com.google.gcloud.examples;
1818

19+
import com.google.common.base.Joiner;
1920
import com.google.gcloud.resourcemanager.ProjectInfo;
2021
import com.google.gcloud.resourcemanager.ResourceManager;
2122
import com.google.gcloud.resourcemanager.ResourceManagerOptions;
2223

2324
import java.util.Arrays;
2425
import java.util.HashMap;
2526
import java.util.Map;
27+
import java.util.Scanner;
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2729
/**
2830
* An example of using the Google Cloud Resource Manager.
2931
* <p>
30-
* This example creates, gets, and lists projects.
32+
* This example creates, deletes, gets, and lists projects.
3133
* <p>
3234
* Steps needed for running the example:<ol>
3335
* <li>login using gcloud SDK - {@code gcloud auth login}.</li>
3436
* <li>compile using maven - {@code mvn compile}</li>
3537
* <li>run using maven - {@code mvn exec:java
3638
* -Dexec.mainClass="com.google.gcloud.examples.ResourceManagerExample"
37-
* -Dexec.args="[create|get|list projectId]"}</li>
39+
* -Dexec.args="[create | [delete | get | list] projectId]"}</li>
3840
* </ol>
3941
*/
4042
public class ResourceManagerExample {
@@ -44,51 +46,88 @@ public class ResourceManagerExample {
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4547
private interface ResourceManagerAction {
4648
void run(ResourceManager resourceManager, String... args);
47-
String getRequiredParams();
49+
50+
String[] getRequiredParams();
51+
52+
String[] getOptionalParams();
4853
}
4954

5055
private static class CreateAction implements ResourceManagerAction {
5156
@Override
5257
public void run(ResourceManager resourceManager, String... args) {
53-
if (args.length > 0) {
54-
String projectId = args[0];
55-
ProjectInfo project = resourceManager.create(ProjectInfo.builder(projectId).build());
58+
if (args.length % 2 != 1) {
59+
System.out.println(usage("create", ACTIONS.get("create")));
60+
return;
61+
}
62+
String projectId = args[0];
63+
Map<String, String> labels = new HashMap<>();
64+
for (int i = 1; i < args.length; i+=2) {
65+
labels.put(args[i], args[i+1]);
66+
}
67+
ProjectInfo project =
68+
resourceManager.create(ProjectInfo.builder(projectId).labels(labels).build());
5669
System.out.printf(
5770
"Successfully created project '%s': %s.%n", projectId, projectDetails(project));
71+
}
72+
73+
@Override
74+
public String[] getRequiredParams() {
75+
return new String[] {"project-id"};
76+
}
77+
78+
@Override
79+
public String[] getOptionalParams() {
80+
return new String[] {"label-key-1", "label-value-1", "label-key-2", "label-value-2", "..."};
81+
}
82+
}
83+
84+
private static class DeleteAction implements ResourceManagerAction {
85+
@Override
86+
public void run(ResourceManager resourceManager, String... args) {
87+
String projectId = args[0];
88+
System.out.print("Are you sure [y/N]: ");
89+
Scanner scanner = new Scanner(System.in);
90+
if (scanner.nextLine().toLowerCase().equals("y")) {
91+
resourceManager.delete(args[0]);
92+
System.out.println("Successfully deleted project " + projectId + ".");
5893
} else {
59-
System.out.println("Error: must supply a globally unique project ID for your new project.");
94+
System.out.println("Will not delete project " + projectId + ".");
6095
}
96+
scanner.close();
6197
}
6298

6399
@Override
64-
public String getRequiredParams() {
65-
return "projectId";
100+
public String[] getRequiredParams() {
101+
return new String[] {"project-id"};
102+
}
103+
104+
@Override
105+
public String[] getOptionalParams() {
106+
return new String[] {""};
66107
}
67108
}
68109

69110
private static class GetAction implements ResourceManagerAction {
70111
@Override
71112
public void run(ResourceManager resourceManager, String... args) {
72-
if (args.length > 0) {
73-
String projectId = args[0];
74-
ProjectInfo project = resourceManager.get(projectId);
75-
if (project != null) {
76-
System.out.printf(
77-
"Successfully got project '%s': %s.%n", projectId, projectDetails(project));
78-
} else {
79-
System.out.printf("Could not find project '%s'.%n", projectId);
80-
}
113+
String projectId = args[0];
114+
ProjectInfo project = resourceManager.get(projectId);
115+
if (project != null) {
116+
System.out.printf(
117+
"Successfully got project '%s': %s.%n", projectId, projectDetails(project));
81118
} else {
82-
System.out.println(
83-
"Error: must supply a project ID corresponding to a project for which you have viewing"
84-
+ " permissions. You can create a project and then call get using the same project ID"
85-
+ " if you have no other projects to use in this test.");
119+
System.out.printf("Could not find project '%s'.%n", projectId);
86120
}
87121
}
88122

89123
@Override
90-
public String getRequiredParams() {
91-
return "projectId";
124+
public String[] getRequiredParams() {
125+
return new String[] {"project-id"};
126+
}
127+
128+
@Override
129+
public String[] getOptionalParams() {
130+
return new String[] {""};
92131
}
93132
}
94133

@@ -102,20 +141,51 @@ public void run(ResourceManager resourceManager, String... args) {
102141
}
103142

104143
@Override
105-
public String getRequiredParams() {
106-
return "";
144+
public String[] getRequiredParams() {
145+
return new String[] {};
146+
}
147+
148+
@Override
149+
public String[] getOptionalParams() {
150+
return new String[] {};
107151
}
108152
}
109153

110154
static {
111155
ACTIONS.put("create", new CreateAction());
156+
ACTIONS.put("delete", new DeleteAction());
112157
ACTIONS.put("get", new GetAction());
113158
ACTIONS.put("list", new ListAction());
114159
}
115160

116161
private static String projectDetails(ProjectInfo project) {
117-
return "{projectId:" + project.projectId() + ", projectNumber:" + project.projectNumber()
118-
+ ", createTimeMillis:" + project.createTimeMillis() + ", state:" + project.state() + "}";
162+
return new StringBuffer()
163+
.append("{projectId:")
164+
.append(project.projectId())
165+
.append(", projectNumber:")
166+
.append(project.projectNumber())
167+
.append(", createTimeMillis:")
168+
.append(project.createTimeMillis())
169+
.append(", state:")
170+
.append(project.state())
171+
.append(", labels:")
172+
.append(project.labels())
173+
.append("}")
174+
.toString();
175+
}
176+
177+
private static String usage(String actionName, ResourceManagerAction action) {
178+
StringBuilder usage = new StringBuilder();
179+
usage.append(actionName);
180+
String requiredParam = Joiner.on(" ").join(action.getRequiredParams());
181+
String optionalParam = Joiner.on(" ").join(action.getOptionalParams());
182+
if (!requiredParam.isEmpty()) {
183+
usage.append(' ').append(requiredParam);
184+
}
185+
if (!optionalParam.isEmpty()) {
186+
usage.append(" [").append(optionalParam).append("]");
187+
}
188+
return usage.toString();
119189
}
120190

121191
public static void main(String... args) {
@@ -124,11 +194,7 @@ public static void main(String... args) {
124194
if (action == null) {
125195
StringBuilder actionAndParams = new StringBuilder();
126196
for (Map.Entry<String, ResourceManagerAction> entry : ACTIONS.entrySet()) {
127-
actionAndParams.append(entry.getKey());
128-
String param = entry.getValue().getRequiredParams();
129-
if (param != null && !param.isEmpty()) {
130-
actionAndParams.append(' ').append(param);
131-
}
197+
actionAndParams.append(usage(entry.getKey(), entry.getValue()));
132198
actionAndParams.append('|');
133199
}
134200
actionAndParams.setLength(actionAndParams.length() - 1);
@@ -142,6 +208,10 @@ public static void main(String... args) {
142208
// ResourceManager resourceManager = LocalResourceManagerHelper.options().service();
143209
ResourceManager resourceManager = ResourceManagerOptions.defaultInstance().service();
144210
args = args.length > 1 ? Arrays.copyOfRange(args, 1, args.length) : new String[] {};
145-
action.run(resourceManager, args);
211+
if (args.length < action.getRequiredParams().length) {
212+
System.out.println("Usage: " + usage(actionName, action));
213+
} else {
214+
action.run(resourceManager, args);
215+
}
146216
}
147217
}

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