1
22
23 package com.liferay.portlet.amazonrankings.util;
24
25 import com.liferay.portal.kernel.util.StringPool;
26 import com.liferay.portal.kernel.webcache.WebCacheItem;
27 import com.liferay.portal.kernel.webcache.WebCachePoolUtil;
28 import com.liferay.portal.util.PropsUtil;
29 import com.liferay.portlet.amazonrankings.model.AmazonRankings;
30
31 import java.util.List;
32 import java.util.Vector;
33
34
40 public class AmazonRankingsUtil {
41
42 public static String getAmazonKey() {
43 return _instance._getAmazonKey();
44 }
45
46 public static AmazonRankings getAmazonRankings(String isbn) {
47 WebCacheItem wci = new AmazonRankingsWebCacheItem(isbn);
48
49 return (AmazonRankings)WebCachePoolUtil.get(
50 AmazonRankingsUtil.class.getName() + StringPool.PERIOD + isbn, wci);
51 }
52
53 private AmazonRankingsUtil() {
54 _amazonLicenseKeys = new Vector<String>();
55
56 for (int i = 0; i < 1000; i++) {
57 String key = PropsUtil.get(PropsUtil.AMAZON_LICENSE + i);
58
59 if (key == null) {
60 break;
61 }
62 else {
63 _amazonLicenseKeys.add(key);
64 }
65 }
66 }
67
68 private String _getAmazonKey() {
69 if (_amazonLicenseKeys.size() > 0) {
70 _amazonLicenseCount++;
71
72 if (_amazonLicenseCount >= _amazonLicenseKeys.size()) {
73 _amazonLicenseCount = 0;
74 }
75
76 return _amazonLicenseKeys.get(_amazonLicenseCount);
77 }
78 else {
79 return null;
80 }
81 }
82
83 private static AmazonRankingsUtil _instance = new AmazonRankingsUtil();
84
85 private List<String> _amazonLicenseKeys;
86 private int _amazonLicenseCount;
87
88 }