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Target3 #9

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269e789
Remove content from Missing pagination
Mar 13, 2020
5ad37c3
tempTarget3
Jul 27, 2020
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47 changes: 0 additions & 47 deletions MissingPagination.java
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Original file line number Diff line number Diff line change
@@ -1,56 +1,9 @@
package com.amazon.cdk.helper;

import com.amazonaws.auth.DefaultAWSCredentialsProviderChain;
import com.amazonaws.services.cloudformation.AmazonCloudFormation;
import com.amazonaws.services.cloudformation.AmazonCloudFormationClientBuilder;
import com.amazonaws.services.cloudformation.model.AmazonCloudFormationException;
import com.amazonaws.services.cloudformation.model.GetTemplateRequest;
import com.amazonaws.services.cloudformation.model.GetTemplateResult;
import com.amazonaws.services.cloudformation.model.ListStacksResult;
import com.amazonaws.services.cloudformation.model.StackSummary;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;

import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MissingPagination {
private static CFNHelperSingleton instance = new CFNHelperSingleton();
private Map<String, AmazonCloudFormation> cfnPerRegionMap = new HashMap<>();

private CFNHelperSingleton() {
}

public static CFNHelperSingleton getInstance() {
return instance;
}

private AmazonCloudFormation getCfnClient(String region) {
return cfnPerRegionMap.computeIfAbsent(region, k -> AmazonCloudFormationClientBuilder.standard()
.withCredentials(new DefaultAWSCredentialsProviderChain())
.withRegion(region).build());
}

public Map<String, Object> getExistingStackParameters(String stackName, String region) throws IOException {
AmazonCloudFormation client = getCfnClient(region);
try {
GetTemplateResult result = client.getTemplate(new GetTemplateRequest().withStackName(stackName));
String template = result.getTemplateBody();
return new ObjectMapper(new YAMLFactory()).readValue(template, Map.class);
} catch (AmazonCloudFormationException e) {
if (e.getMessage().contains("does not exist")) {
return null;
} else {
throw e;
}
}
}

public List<StackSummary> listStacks(String region) {
AmazonCloudFormation client = getCfnClient(region);
ListStacksResult result = client.listStacks();
return result.getStackSummaries();
}
}